Doesn't really work that way. Black bars are there because nothing is being rendered there. The game doesn't have access to that area of the screen. Pushing the HUD there would just cause it to disappear. I'd be the same thing as pushing the HUD off of your monitor when playing in 16:9.
I'm not a huge fan of developers instragramming their video games (film grains, filters, blurs, etc) but this thing does look gorgeous in action, judging by the videos I've watched. More importantly, I'm pretty excited to play it as well. Next Friday can't come soon enough!