I can't say I've played an FPS in recent years that brought anything new to the genre, but it looks like ARMA3 is actually making some headway, in something as simple as stances and movement.
www.youtube.com/watch?v=G8vrbzNYEwM
All of the animations look so nice.
I was watching a play-through the other day and heard over the mic' "Fuck, the tactical walk looks so badass." Pretty much summed it up haha.