A thought/theory on the current Captain America storyline I didn't keep up with a lot of the ultimate universe storylines towards the end of that universe, but I have been keeping up with Secret Empire and so far I think this is going to end up being a great story. (I know I'm going to get a lot of negative comments but shit happens!) 
Anyway I was thinking that this Steve Rogers isn't the Captain America that everyone loves but is in fact the ultimate Captain America. The reason I've been thinking this is the change in his uniform reminds me of the ultimate universe version of Captain America, as well as his general disregard for any of the original Cap's allies and friends. Add that to the fact that more and more ultimate universe characters keep popping up ... anyway just a thought 