I dont know how much of a temp fix this is (or even if its acceptable) to you the player, but change your screen size to >>> CINIMA <<< via your remote control (for the TV) and no more black bars granted it does look slightly stretched but im thinking at present i can handle that better than the bars ill soon know once i hit a bit of game play.
I hope this helps somewhat assuming you havent tried this already.
XBOX One user