The US-2x2 and US-4x4 will be available first, I think the US-16x08 about a month later but not sure.

Craig, thank you for this news.  
 
A few here have mentioned the FW-1884 and related hardware, and more than a few here use these, but unless I missed it, I did not see any comment from you about it.  Would it be possible for you to put in a good word with Tascam to please continue to support those perfectly good hardware units with drivers for current operating systems? 
 
In the case of Windows 8, we already know the FW-1884 can be made to run using some hacks and a convoluted installation routine.  Thus it should not be that difficult for Tascam to update the driver.  [Yes, I know the drivers were written for them by Frontier Design, but in the case of Windows 7 64-bit, the driver existed for almost a year from Frontier Design before Tascam would release it.]  And the good news is that the specific SONAR driver, maybe ten years old now, continues to work.  
 
Updating the driver shouldn't be that difficult for Tascam, and they would immediately make a giant leap in our opinion of their software support.  If you have followed any of the discussions from about two years ago, you will know that many FW-1884 users declared they would never buy another Tascam product, good as the hardware is, because of the lack of driver support.
 
We can hope again.
 

riojazz
A few here have mentioned the FW-1884 and related hardware, and more than a few here use these, but unless I missed it, I did not see any comment from you about it.  Would it be possible for you to put in a good word with Tascam to please continue to support those perfectly good hardware units with drivers for current operating systems? 

 
+1 to this

microapp

riojazz
A few here have mentioned the FW-1884 and related hardware, and more than a few here use these, but unless I missed it, I did not see any comment from you about it.  Would it be possible for you to put in a good word with Tascam to please continue to support those perfectly good hardware units with drivers for current operating systems? 

 
+1 to this

+ a lot more for this 

Before I pass these requests along, I want to check on a couple things.
 
There are Sonar control surface plug-ins for 32- and 64-bit systems from 2010. Are these working for you?
 
There are drivers for Windows 7, Vista, and XP, with both 32- and 64-bit versions for all three operating systems, from 2010. Are these not working? If not, what problem(s) do you encounter? 
 
Forgive my ignorance, but I don't have an FW-1884 so I don't know what the current experience is of using it with Sonar. I was under the impression that much of the time (certainly not all), Windows 7 drivers work with Windows 8. It would be helpful to know what doesn't work with Windows 8 that did work with Windows 7 so I can relay this information to TASCAM.
 
I do believe the product is over 7 years old; let me stress that since becoming part of Gibson Brands I've learned (in several different contexts!) just how convoluted it can be to deal with legacy issues from third party companies. I don't know what TASCAM can or cannot do, but I do know that they listen to customer feedback and take it seriously. 

The current FW-1884 drivers work fine in Win 7x86 and x64. They are difficult (at best) to impossible to install in Win 8.
I gave it a shot, I will not be a "happy" Win 8 user any time real soon.
I have a 500gb WD Black drive (Win 8) I use alternately as a door stop or a coaster. :-(
I do love Win 7 and both my 1884's though!
Thanks in advance for any help you can give us Craig!
(you weighed in on the Frontier Design issue in another thread, I "get" the issues Tascam faces vis a vi third party drivers.)
Hopefully we are in for better times ahead. Made some music with a 688 and Cakewalk 3.0 Professional. Sometimes I miss it!
Tom

I don't think the Win7 drivers had full-functionality either. But I'd defer to Tom on that.

The CS plugin suffers the same issues as the mackies, etc. The eq cannot acess pro channel. But faders, markers, jog wheel all work.
I wish the side car could do busses while the main board does tracks, but wish in one hand!
The important stuff works; and the audio drivers work fine. Little better latency with the RME, but its not "night and day".
T

Craig, I also defer to Tom Deering to represent me on all things FW.  In case it helps:
 
My understanding of this is that everything worked fine through Windows 7 32-bit.  The problem arose with the lack of a driver for Windows 7 64-bit.  This was the only thing preventing me from making the move to a 64-bit OS.  After nearly a year of respectful inquiry by many users and help from a Tascam User Forum member who was a Tascam employee, Tascam looked again at the driver they had for almost a year from Frontier Design, and released it.  Simultaneously, the Tascam website announced the FW-1884 was no longer supported and that there would be no new drivers.  I think this affected Mac users
first, then Windows 8.x.  FW-1884s started appearing in quantity on eBay etc., and shortly after, questions by buyers about why there was no current driver.  Then came the declarations about never buying Tascam equipment again.  I have tried carefully not to exaggerate or inflame here with this recap.
 
Reports from the Tascam User Forum and here indicate that the Windows 7 drivers do not work without modification in Windows 8.  The same reports say that the modifications are difficult, tricky, and may not work.  I did not attempt this process, so I stayed on Windows 7 64-bit.
 
Of course, now we have Windows 10.  I'm typing on a non-SONAR laptop running Windows 10 now.  So far, it's great and I will upgrade on my production system as soon as all drivers are available.  And I do not want to lose my FW-1884.
 
Thanks for listening.  If I have made any factual errors, I hope someone will correct them.

riojazz
Craig, I also defer to Tom Deering to represent me on all things FW.  In case it helps:
 
My understanding of this is that everything worked fine through Windows 7 32-bit.  The problem arose with the lack of a driver for Windows 7 64-bit.  This was the only thing preventing me from making the move to a 64-bit OS.  After nearly a year of respectful inquiry by many users and help from a Tascam User Forum member who was a Tascam employee, Tascam looked again at the driver they had for almost a year from Frontier Design, and released it.  Simultaneously, the Tascam website announced the FW-1884 was no longer supported and that there would be no new drivers.

Disclaimer: Everything that follows is speculation except for dates, but is based on experiences I've had over many years as a consultant to many companies.
 
There can be a lot of reasons why something is no longer supported, other than not caring. As TASCAM never made a replacement for the FW-1884, presumably it wasn't to try to force you to buy a replacement unit. I did find this on the Frontier Design web site: "In 2003, TASCAM and Frontier partnered on their most advanced computer interface/control surface devices, the Firewire-based FW-1884." That was 11 years ago - an eternity in "tech time" - and if it was truly a partnership, then when Frontier Design left the business, it seems that would have left a gaping hole in TASCAM's ability to keep the unit up to date. It's very possible at least some of what FD contributed was proprietary or in turn licensed from yet another party. I've been involved in some projects where licenses stretched down a line of multiple companies.
 
As to sitting on a driver for a year, the last entry in FD's press room was 2006! I suspect that for TASCAM to come out with a new driver in 2010 involved more than just taking something off the shelf. I would be willing to bet there was some behind-the-scenes action needed to make that happen, not just saying "Hey, let's release this now." They might not have known how to QC it, in which case it would make a lot of sense to say "Look, here it is, good luck but we've given up on supporting this."
 
I wouldn't be surprised if the hit TASCAM took from depending on third parties influenced their decision to bring driver development in-house. When I talked to a TASCAM representative a few months ago about in-house development, it was clear that without naming names, there were many frustrations caused by depending on third parties.