I think 35mm more or less covered it all, but I do get the feeling that a lot of people don't quite get how good a match Sonar is for Bandlab (and vice versa).
Firstly, I don't think for a minute that Sonar in its form will be much different from what we've seen - however if I may speculate...
Sonar (and formally Cakewalk Pro-Audio) as we know has been somewhat of an underdog in the industry, and despite boasting a full set of features compared to its competition, has never quite won over the Pro Tools / Logic / Cubase crowd.
This to my mind has been a major stumbling block to collaboration with other musicians, and ultimately taking your work into the studio - where invariably they'll be using Pro Tools, and might have a copy of Cubase knocking about. This, and probably the lack of a Mac version, has no doubt had an impact on sales.
Bandlab on the other hand, is a collaboration platform with a multi-platform/mobile DAW (albeit fairly basic).
I see Sonar (probably very soon) having tighter integration with the Bandlab "platform", and by that I mean the whole eco-system, not just the DAW. This gives Bandlab the chance to offer collaboration for the pro's - both between musicians, and between musicians and studios/producers. It also exposes Sonar to millions of existing Bandlab users and gives them a fantastic upgrade path from the Bandlab DAW, and a new revenue stream for Bandlab.
It would be great to be able to navigate Bandlab projects directly from Sonar, fork them, upload them back to the cloud, get notifications of comments, parts being edited / added / mastered etc, and being able to immediately get the updates and continue working on my songs.
Now I appreciate that the way more amateur musicians collaborate is different to how many of us may want to collaborate - personally, I am pretty picky about who I want to collaborate with, and I'm very picky about what goes into my songs. However, Meng and his team seem extremely open to suggestions and I'm sure the Bandlab platform will evolve to accomodate how pro's/semi-pro's operate much in the way they've already done for the education side.
Even if the Bandlab community side doesn't interest you, the fact that it offers not just a lifeline, but a huge opportunity for the expansion of Sonar's user-base should give all of us some comfort that Sonar's future is far more secure.
M.