No QTEs in Witcher 3, as far as I'm aware, minigames are optional so you don't need to worry your head about that, heh. Hard to really get bent up about trailers for cRPGs at least at E3, both games will have the inevitable trailers for element X (story, characters, combat) later on. DA used Marilyn Manson and epic action and that turned out decently well enough.