That'd be nice. At this point I'm betting zero additional time / resources will be devoted to this. I'm honestly surprised they even bothered to make the 4e books digitally available in pdf, after all the talk in the leadup to 5e. Their "big tent" isn't quite big enough.
Eh, at this point, 4e ought to just be an income stream to them. By no means saying they should give away the IP, but they shouldn't be worried about 4e rising from the dead in any way that doesn't just give them more money.