If you call the writing and depth of the world in Fallout compared to the writing and depth of the world in Fallout 3 moving on...
I wouldn't mind a Fallout 1/2 remake so long as Bethesda gave complete control to Obsidian, they spent the time to really REMAKE F1/F2 in 3D instead of just making Fallout 3 with a Total Conversion to the Fallout 1/2 world and story. They'd also have to sack up and include killable children, the original score would be another necessity.
Most importantly, and depressingly for LT_Jones I suspect, damage would have to be done as it was in Fallout 1/2 not as it was in Fallout 3. A shotgun blast to the face could not guarantee a kill as it did in Fallout 3. Shooting a BoS Paladin in the face with a shotgun should not kill them. Granted DT being reintroduced could fix that, but the bigger issue at hand is that when playing in the First Person Perspective people expect the bullet to go where they aim it and for headshots to equal death.
If F1/F2 were remade the maker would no doubt have scores of angry kiddies screaming about how little sense it makes that their shotgun didn't kill the human tank in one headshot, or that they aimed the gun at their enemies head so they should have hit it.
Essentially until the gaming community re-matures to the point it was at when it was a niche market you couldn't possibly see a proper F1/F2 remake.