ToEE has a forum if you'd like to see how it fares. It won't outdo BG2 for the same reasons IWD2 couldn't -- You can make all the fights, quests, treasures, monsters you want, but the NPC interaction of BG2 and PS:T is a whole different aspect that people really like.
BTW, KOTOR (a/k/a NWN with blasters and lightsabers) makes a few good jabs at NPC interaction and development. The game's too short to have the scope of BG, but it's good on this level. With some very funny lines.
