--I guess what I'm saying is that it feels like a completely new game would have to be written within the confines of what's happening. For example, if you join Gortash, what changes? Are you and Gortash suddenly hashing out plans, doing quests and overcoming some obstacle together?
For me, it would mostly just be changing the ending to something more satisfying. Like instead of Gortash dying to the netherbrain you could actually rule with him or choose to betray him in the end. Then it could show the effect you've had on Baldur's Gate, what became of your old companions, have some parting words with them etc. Or maybe you could have an epilogue party with your companions who are down with evil lol. Other than that I'm personally pretty satisfied with the rest of the game. It would be nice to have more of a reaction to your evil choices from various people throughout the game, but I wouldn't mind if just the endings changed to something more substantial and with some closure other than just sitting on top of the netherbrain looking evil.
