think you can take it for granted that these are not stupid people, and that they've had a good plan for their next version designed for quite some time. I think that (as usual) people's expectations will be met, and surpassed in ways that are unexpected.
GS is an admirable tool, but I really believe we're approaching a crossroads where Tascam will either make or break it. Far too many important content developers have left the building. It will be interesting to see what happens. Unfortunately, there are a lot of cases of really promising technology that took a wrong turn and ended up on the side of the road (Emu, FairLight, Synclavier, Akai, etc., etc.).