First of all, Fable 1 was not a bad game! It just couldn't deliver everything that was hyped before. But still Fable was fun to play, it was not a masterpiece, but it was good.
Fable2 is hyped again but this time MS told Peter to shut up and not promising things that didn't make it in the game. So I guess and hope that this time, the game will be really great. There are many new great things such as tho online coop without any lobbys or something (shown at e3, so it will be in the game) the dog always at your side, the look of your character based on the way you played - evil or brave, to get married and to show your home your friends on Xbox Live etc. All these things sound pretty big.
Fable2 is a must have for me, even if it turns out to be like the first one, it is still worth it. And the new scans look so damn sexy.
Imagine not having GamePass on your console...