I don't think so- they were good, but they've had their day. I'd like to see something new, like a prequel to all fallouts a game where the story takes place in the early years after the Great war.
I agree with the person above me, it would be cool to play 1 and 2 with an engine like 3 and NV, but I would rather see a different story. Considering that every fallout game besides 3 is set in the west, and its the same factions over and over again, I think they should do a drastic change next. Maybe Fallout Texas or Florida, or something I would love to see is them doing one in a whole different country or continent, like Fallout Russia, or China(considering the connection to anchorage), I think thats an idea they could do a lot with.