Can't say I'm excited at all, I'm afraid. I played the bahoovies out of it back in the day. The only thing I would really want to do is the Razor dungeon, which I got jipped out of because I got a new computer with Windows Vista and the DLC's DRM broke under 64-bit.
Watching the trailer was great, though! The graphics look SO much nicer!
I didn't watch the big video much. What are they planning to tweak? There was a big issue with the level scaling and one of the earlier main mission quests, where you go to a central town starting with "K." If you go there right away, it's easy and anti-climactic as little imps are guarding a pretty important thing. If you pull the "I'll do everything else first, then do the main quest" tactic, the mission is incredibly hard with huge demons around every corner.
There was also a pretty major XBox-factor, with the underground areas divided up into really small areas because the old XBox didn't have enough RAM to deal with anything larger. They could knock down a lot of walls in those places today.