If they are COMPLETE replica's of the old games only with better graphics, then yes. (This means turn-based gameplay and map node system with NO OPTIONAL FPS or Sandbox crap...)
But if so much as one word in a dialogue line is changed, then no.
I don't have that sense of childhood nostalgia for Fallout and Fallout 2 that others here do. In honestly, I couldn't care less, BUT only if gamesas/Obsidian remake it graphically, leaving the storyline, characters, and etc intact and unaltered. If something was cut fron Fallout and Fallout 2 that was cut for time/engine reasons, thats debatable in terms of implementation. But if it's focus is purely graphical in consequence of reduced story? No.
These
They could remake them to have todays graphics and 3D and all that, but if they so much remove a character or a line of dialogue or a quest or a settlement, then that... that... I lack the words to describe it. It should also still be turn-based with death animations like the ones in the old games (still orgismic to watch someone die by full-auto fire), even add more ones. I don't care if they add a lot of new animations and variations in how characters, outfits, buildings and wreckage look, that would just be good, but they should not redesign how Junktown or the Hub or Boneyard or anything looks like, just Three-Deefy it. They could even put in that Continuous Turn-Based from Fallout Tactics because I really like it, it speeds up battle while still making precentages, distances, all those other little number calculations for damage and resistance, aswell as AP matter (for people who don't use VATS, AP is useless, and I kinda don't like how it's done in VATS either)