A few new rules for this season:

link: http://www.nfl.com/news/story/0ap300...-to-10-minutes

OT reduced to 10 min's -
From some statements by players & coaches, that 5 min's makes a noticeable difference in terms of physical ware & tear. Granted there are those that will get heartburn over this but I just see more tie games. Maybe teams will be less likely to coast through the end of regulation to slide into OT?

Rules relaxed on player celebrations -
Finally, not regulated to a golf clap any more. The fans like excitement (as do the players).

Added a designated return from IR player -
So now 2 guys can come back during the season. This wins on a number of levels but especially with all of the attention that goes into the concussion protocal it really is a good addition.