Actually, I don't think teams will get away with the strategy the Saints used in the Super Bowl. I think they'll get flagged if they do (and IMO should). Especially early in the season.
A lot of things get let go in the SuperBowl that don't get let go in the regular season. And while this may be a bit of a conspiracy theory, I think the Saints got away with a bit extra because of the "making history" PR line (first ever super bowl, post-katrina, etc).
Beating the crap of Favre has been tried many times. What was different about the Saints is they were willing to flirt with crossing the line (if not outright ignoring it) a lot more. I don't think that is going to be replicable, especially with the "icon" thing operating, in the regular season.
If I were a betting man, I'd put money on this: if the Saints "go after Favre" in week 1 the way they did in the championship game and the way they went after Manning in the Superbowl, they'll get flagged early and often.
And do not be conformed to this world, but be transformed by the renewing of your mind, that you may prove what is that good and acceptable and perfect will of God.
Romans 12:2 (NKJV)