Well he's already just released Book 1 of a 2 book series he's writing based on the Elder Scrolls video game.
It is called Infernal City, book 2 I think is due next year. Appears to have received mixed reviews.
Here's a blurb about Infernal City:
Four decades after the Oblivion Crisis, Tamriel is threatened anew by an ancient and all-consuming evil. It is Umbriel, a floating city that casts a terrifying shadow for wherever it falls, people die and rise again. And it is in Umbriel s shadow that a great adventure begins, and a group of unlikely heroes meet. A legendary prince with a secret. A spy on the trail of a vast conspiracy. A mage obsessed with his desire for revenge. And Annaig, a young girl in whose hands the fate of Tamriel may rest . . . . Based on the award-winning The Elder Scrolls, The Infernal City is the first of two exhilarating novels following events that continue the story from The Elder Scrolls IV: Oblivion, named 2006 Game of the Year.