It's not huge but it's my favorite xbox IP and I'm glad they are bringing it back, I just hope they don't try to do what they did with the cancelled MP game and put the fable name on something that isn't really fable. It needs to have the humor and charm of the originals as well as the freedom to make your character whatever you want without having to pick a class.
Fable 3 sold several million copies less than Fable 2 that's not a good sign. I loved all 3 games although the tech issues in 3 should have been addressed before it was released.