If (And this is a big if) it works exactly as described and intented, then yeah, this could be huge. If it works just like they want it to, it would reviolutionize the way quests are handled in games to give each player a tailor made experience.
Then again, it might not work that well, it might fall flat on it's ass and just be a bother. But that seems rather unlikely, if I understand what I've heard about it correctly then it's a dream come true for any modder who wants to do quests, but can't quite get it worked out (Namely myself
).
Only time will tell. It could svck, it could be awesome. We don't know yet.