I doubt that the Super Bowl will make a difference. After all, the game doesn't even start until after 6:00pm-that gives people all day the visit the parks. If you're staying on-site, I'd recommend doing the early entry that day, if you're able to get there for opening. The park will get very crowded, very fast, but that extra hour in the morning is great for getting alot done and then skipping to another park by late morning.