I'll re-iterate that IT WAS NO SECRET that ED would be concentrating full-on on the Ka-50 for BS. They made this -very- clear.
Despite this, there's a bit of improvement or change for nearly everyone, and the Ka-50 lays the foundation of the code needed to build accurate, high-quality simulation of further aircraft. It is a foundation for the future, wether you like helos or not (And I bet once you try it, you will -likely- be interested).
ED is not making the new 3D models, nor their animations - third parties are, and yes, it takes a little bit of time for ED to actually add them, but if you think they're not hard at work squashing bugs in the Beta, you're quite sorely mistaken.
There is a -huge- load of work to do.