I'm hoping for "Fallout in Space." That would please me to no end.
Fallout 3 remaster/remake would be awesome, as well. I recently tried to play Fallout 3 again but I couldn't do it, the visuals were so bad and it gave me a terrible headache.
Fallout 4 was such an excellent game, I'd love to dive back into it with another game the way New Vegas was built on F3 but that seems unlikely.
Kind of looking forward to seeing what happens with RAGE. The first game definitely had potential, though I expect anything new to be much different.