They also talking about going to 17 games.
At first I thought this was unworkable because half the teams would have 8 home games and the other half nine which would lead to endless complaining but I think I've figured out how to have a "fair" 17 game season:
Every team has a mandatory international game on their schedule which is neither home nor road. Schedule, say, eight games in London, two in Mexico City, one in Berlin, one in Madrid, one in Japan, one in Australia, one in Toronto (not for the Bills) and one in Vancouver (not for the Seahawks) but these can vary season by season.
This extra game would be an interconference matchup so each team has five opponents on the schedule from the other conference instead of the current four. You'd have the 1s face the 1s, the 2s face the 2s, the 3s face the 3s and the 4s face the 4s so there is a revolving schedule system that is as fair and predictable as possible to everyone.