The Packers get Nelson coming back, and I think one or both of Adams and Abracadabra are going to be a budding star. Lacey lost weight and could really come back strong. His problem is Starks is quicker, and that usually shows.
The Packers have unfortunately been good about keeping their OL and continuity. If they hadn't, I think Rodgers might have taken a beating and may have pushed his retirement age to the earlier 30s.
What could help towards Rodgers retiring younger is if he takes a beating, and the fact that he likes to throw deep, and doesn't have a great short game, could lead to just that.
But, like Manning's motivation to at least tie his brother in SB rings, I think Rodgers would still like to one up Favre, and get a second ring. This year could be the season he does just that, realizing he isn't going to play forever.
Hopefully the Vikes beat the piss out of him, finish ahead of the Pack, and take away his desire, drive and motivation.