I'm eager to see if/when any of the classic mods for the original game make it into the remaster. Darkroot Garden just wouldn't be the same without vurt's flora overhaul mod, and from what I've read I doubt the remaster enriched the foliage to the same degree as vurt's mod. The classic texture mods may be better than the remastered textures as well.

Regardless, I'll buy it for the same reason Malleus described: It's just the way forward for Dark Souls multiplayer. I'm not as into the multiplayer as Malleus, but I still love occasionally helping people take down tough bosses or fend off invaders. Plus I'll admit the irrational emotional weakness of just loving Dark Souls, so I just gotta have it. *shrug*