Just seen the animation and it looks incredible, yeah there are a few minor things that can be changed and have been mentioned but it's solid stuff.
As to seeing animations in game from now on if MB chooses that, I say don't do that for the actual game play, leave it as it's been but if you do want to showcase your stuff in the game consider a gallery. By doing this you can also not worry about story canon and even explore "What If's" that would not happen otherwise.
I say this as I've seen games introduce something new that changes the dynamic much too late and it throws it off. Just my two cents.