Can it happen?
Or to give a more complete answer than the others... No.
Well, not unless CW decides to completely change the entire concept and purpose of Paragon Chat, which is a glorified chat server using CoH as the chat interface.
Now, it's possible that CW will figure out how to implement powers and combat and so on from all his hard work, but it won't be going into Paragon Chat, as that's not PC's purpose. If he does such a thing, it's almost certainly going to be a different program, perhaps some kind of actual game server that we can potentially connect to at some unknown future date.