The league will pretend to talk about implementing challenges on PI calls, but ultimately the "competition committee" won't implement it. However, the Saints can frame their "We ****** you out of the Superbowl" apology letter someplace prominent for fans to see when they walk into the stadium. (I would totally do that if I was an owner, btw).
Now I’m glad the Saints lost and their fans are miserable. If you overturn the game based on that, where does it end? Shouldn’t every single play be reviewed and questioned for how it could have altered the outcome of the game had a penalty been called?