A remake of Torment could sell well I think, if made correctly. With full voice-over, great animations that would retake all the descriptions that were in the dialogue in the original (THAT would take a chunk off the length of text in the game...), better fight system, better class and customization system that would enable each class to be useful and fun to play, etc.
It seems that today, a lot of gamers like the "movie" kind of game, as well as flashy graphics and "impressive" power. Man, was Torment full of them! It ever dumbed down the fight system in order to be prettier and enable JRPG-like spells!