Well, as there is usually one or two good games at launch at best, I would say Killer Instinct and Knack are going to be huge disappointment.
If Ryse gameplay stay that way, it will have quite a backlash too (too cinematic too really have a gameplay).
And as Ubisoft will start making mistakes this gen (they have grown too fast), I worry about watch dogs.
But we can't really know before launch.