Ive been saying for a while that I have zero doubt there will be an NFL season. Out of all the sports, the NFL is the richest, will have had the most time to prepare for their season, and will be able to be as flexible or creative as needed. Games on saturdays, longer season, shorter season, games in neutreal sites, biodome scenario, etc.
The NFL could pull of any or all of these scenarios, and as others have mentioned, as long as they get it on TV they are making a money. I think its way to early to say there wont be a college football season, but the NFL will happen for sure.
They also have a more unique product because of Fantasy Football. People will watch more games because it has fantasy impact. Normally you might not watch a game between two teams you don't care about...but if you have a WR and a RB going in fantasy, and theres nothing else on...what the heck!