IONSTORM.COM today updated their site with following news... Thief III is Coming!! At least that is what the news on the site say.. Take a look.

Havok has signed a deal with Eidos Interactive's Ion Storm Austin studio (ISA) to provide real time physics. Ion Storm will be building on the go-anywhere, do-anything theme of Deus Ex and Thief in their next releases to allow even greater interactivity with all objects in a scene. Havok physics will work alongside the ISA-modified Unreal engine in both titles. The freedom to engage the game in an unpredetermined way will be a hallmark of using the Havok physics engine.

Now there is an official statement about Thief 3 will be for the X-Box first instead for PC. Words of Reassurance from Emil Pagliarulo. Read the full story here.