Magic Russ
http://www.dontcrack.com/news/2017/10/applied-acoustics-systems-tassman-4-depreciated/
https://www.applied-acoustics.com/tassman-4/faq/

     FWIW, though AAS is based in Montreal,  both co-founders are actually from France.
https://www.applied-acoustics.com/about/
Incidentally, AAS correctly referred to Tassman as "deprecated" not "depreciated" on their website -  https://www.applied-acoustics.com/tassman-4/faq/
The reference to T4 being "depreciated" came from the "Don't crack" folks (DC is also apparently based in Montreal, and I assume ARE Canadian (though I don't know if they are French Canadian or not. Could just be anglo-Canadians who can't spell (like me)).
 
     That said - I am still hopeful for Tassman 5. In their statement, AAS never actually say that there won't be a Tassman 5 (unless I missed it). They have deprecated Tassman 4 specifically, and use the version number specifically, then went on to proclaim their belief in a future for a modular environment. In the past they took a lot of flack for incompatibility between versions (T2 to T3 IIRC) - and I am guessing they are sensitive to releasing T5 as a completely incompatible version to T4, which is probably necessary to maintain compatibility with all of their other products. 
So -  I am keeping faint hope that AAS are just managing expectations and that there will in fact, be a Tassman 5.
(sorry for the long post - got up early and waiting for inspiration to strike).
 
 

Brando
then went on to proclaim their belief in a future for a modular environment.

By modular, I believe they mean HW modular. They very recently collaborated with intellijel (a Canada-based eurorack modular company) on this: 
 

 
So I would expect more of that rather than SW modular stuff.

yeah, audiodamage have also started doing hw stuff https://audiodamage.com/collections/eurorack

So has Sonic Charge with Microtonic/PO-32 albeit in a more limited way. Seems like a step backwards IMO (From the point of view of someone who sold off all of his hardware synths a few years ago.)
Ah well -  

Backwards? Nah. IMO HW is the only right way to do modular, and in the last few years the eurorack modular market has been exploding even if it's still a niche within a niche.
 
The advantages of SW are polyphony and presets/repeatability. But with SW modulars you tend to end up with "synth builders" which often have explicitly separate builder screens and you end up being in either "building mode" or "playing mode". With a HW modular you aren't really done creating the patch until you turn the whole thing off, and experimentation is immediately rewarded and completely addictive. It's just different. And it's not the same as non-modular analog HW synths vs. VST emulations either.
 
Having said that, SW like Tassman and Reaktor do what they do very, very well and there's nothing wrong with a great synth builder.

drewfx1
The advantages of SW are polyphony and presets/repeatability

Exactly - it would be like dumping Microsoft Word to buy an electric typewriter. Thanks/ no thanks.