I'm inclindes to wait till both games are being played retail, in front of me.
I still remember the motorstorm trailer, then playing the retail game.
I still remember the forza 5 e3 trailer, then playing the retail game.
As far as i'm concerned, until its actually unfolding in front of me, on my own standard console, i'm just going to assume theyre both running with a degree of bullshit slapped on.