I agree, I love Nike and wear combat gear always when I play (those undershirts)
HOWEVER!!! watch out, this was made for the Houston Astros to show the most realistic design, this by no means makes it that Nike liscense was obtained. I just wouldnt get your hopes up. A presentation at a conference would have far less legal/copyright issues as opposed to a game that hits shelves everywhere across North America... Just saying, as much as I hope this is the case I wont believe it until I see it in new screenshots from the SCEA team itself.
Be aware...