Nah, winning the Super Bowl doesn't guarantee tougher opponents. The formula is a rotation based on which divisions you played last season, and where you finished in your division. For example, last year we played the AFC South and NFC West. This year we rotate to play the NFC East and AFC North, and next season we'll play the AFC East and NFC South. Additionally, we'll play NFC teams from the East and West who finish in the same place in their division as we do in ours. For example, we finished first in our division last year, just like SF and Atlanta did in theirs. That's why we had/have them on our schedule this year. If we go on to win our division next year, then we'll play the division winners out of the NFC West and East next year. If we finish second, we'll play the second place finishers, and so on.