FiringSquad has published a short Q&A with Bethesda's Mark Nelson about their upcoming Shivering Isles expansion pack for The Elder Scrolls IV: Oblivion.
Q: What other content and gameplay elements have been added to Shivering Isles?
A: There are a ton of new quests for the player to experience in the Shivering Isles. In addition to the main quest, there are a bunch of miscellaneous quests spread throughout the world. I'm very proud of the quests. I think they're among the most expansive, interesting quests that have ever appeared in an Elder Scrolls game.