The Nova's at WM aren't going to be done. I guess I'll tell ya all now, Kirk no longer works there and Chris is trying to back off of paintball entirely, only maintaining a field and small parts/proshop for tippmanns and the like. So now WarMachine is known mostly for the T-Shirt Guns and Baseball guns that they make (which are really...fun by the way
Second of all - many of the things listed that you suggest are good suggestions, but all together they would furnish a completely different gun. Certain things such as theframe and mainbody define Nova's for what they are. If you made a Nova more mainstream you would wind up with the Mayhem or Assault 80 - which is the original intention behind the pair all together (they would be an "upgraded" Nova with the more modern concepts thrown in).
Finally, about the Dreadnaught - that was a design scratched about 4 months ago. Only one proto-model was made and I must say that it was quite heavenly, weighing in at ~1.4lbs and able to achieve 1400 without tweaking off a 68/45. After tweaking we got around 1600, but never really got into it since we weren't allowed to use it for anything. It's one gun that'll be hanging on the wall as a little toy for a long