Honestly, I don't know that they could do Fallout 1 and 2 justice these days.
A lot of the stuff they got away with, as a city of prostitutes (and the ability to become a porn star) and junkies, and quirky and older jokes like the Monty Python references, might make a lot of 'younger' gamers uncomfortable, and the jokes go over their heads. Hell, I don't think I've seen any of the darker or more twisted choices (sleeping with a slaver for a discount on a slave purchase, to get your stolen car back, or ending up with a ball-gag and a fade to black after losing an arm wrestle with a super-mutant) and killing the pickpocket kids or anything like them in recent years in any game, I'm not sure they wouldn't push the rating to AO even if nothing is shown, perhaps considered 'sexist'.
Even New Vegas tended to allow the player to feel 'special', where as in the old games you got saddled with a task that had killed/ruined previous 'heroes' and become a legend later (your deeds actually rank pretty low, compared to later heroics), and get a grand title that people pretty much mock along with your tribal heritage the entire game while the world beats you down, respectively.
All that said, it would still be amazing to get a redux as close as they are willing to go with the originals.