So I did made my own concept of what I expect the field to look like, but it basically ended up being virtually identical to Pitt's concept, so there's no reason to post it. Just for fun, I also decided to make a couple concepts of what I would have liked to see for the game.
As you can see, the big changes were adding the conference logos to the end zones, and swapping the Super Bowl and NFL logos, so that one big Super Bowl logo would be at the 50 and two smaller NFL logos at the 25s. I've always liked the idea of the Super Bowl logo at the 50 as opposed to the NFL logo. The other changes I made were white outlines on the team scripts in the end zone. The Chiefs one was small, one pixel wide, because I thought it looked better straight on the yellow, as can be seen on the actual field. The Buccaneers one was a lot thicker, at 3 pixels, but I think it looks much better with the white outline than it did just black on red.
This concept was largely the same as the other, with the obvious changes in end zone colors, from yellow to red for the Chiefs, and from red to pewter for the Buccaneers. I also removed the white outline from the Chiefs, and changed the Buccaneers script color from pewter to red to coincide with the change in the end zone color. I like the look of the pewter end zone for TB, actually.
I'd be interested in any feedback on my concepts, if you guys liked them or not. I've followed this thread for several years now and have always found it fun, it inspired me to start making my own fields on Photoshop.