Mirrors Edge 2
I would make the contextual actions much more lenient. I would want a lot of the actions to feel more fun and intuitive like assassins creed. I feel like the whole flow of that game would come crashing to a terrible halt when you would miss a grab by a millimeter.
Also I would alternate between linear "racing" missions, and stealth missions(with some decent stealth AI) These stealth missions would focus on climbing and fitting through tight places to either avoid or slowly ghost a superior force.
Also, when you disarm someone, you would have to shoot them to kill them. I don't know why but that always bothered me lol