I like franchises. The Cod, Halo, Gears, Assassin's Creed etc. all are fantastic quality games, and say what you like about "risks", but they play waaaay better than some indie game made in a basement, and I would rather play MW17 then say, a "supah risky game" that makes you control the working of bowel movements or something. Just because something hasn't been done doesn't make it good or even worth trying.
Refinement people, that's what sequels are [usually]
Refinement people, that's what sequels are [usually]