7. As you have stated earlier there will be multiple endings that will require you to use other characters. How are you planning to keep the game fresh for those players who are going to try and accomplish all the endings?

TC: These endings are not simply choices you make at the last minute of the game. Many of them are simply not available unless the party is evil, or good, or has an item in their possession, or performed an action earlier in the game. If a player tries to accomplish a different ending, he will see quests and dialogs that were not there on his first time playing.