Any mods that add content (like sidequests and areas) to Throne of Bhaal?

I always found Throne of Bhaal a bit... linear. I love the overall story and think it fits well into the Bhaalspawn Saga (SoA was a better game but a bit less integral in the story of your PC's divine essence) but I always felt it could use a bit more meat.

Is there anything that adds quests to ToB? Maybe some more encounters or something like Watcher's Keep?


PS: In addition to Ascension