I have no special insight into XNA but I worked at Microsoft for many years and I can pretty much guarantee that XNA is dead and will never be coming back. When a project goes dark like this it's because it's been abandoned by the political power structure and no one will touch it. There's no reason for anyone to burn political capital in order to try and save it, even if they wanted to. The reason why we're not getting a clear answer is probably because it's been abandoned so thoroughly that there's no one left who even cares enough to make a statement about it. SharpDX, MonoGame, and Unity3D are all viable alternatives and the last two have the advantage of breaking you out of Microsoft jail so you can go cross-platform.