Presumably, this ends any chance of Favre taking the Packers' $20 million marketing offer to stay retired.
"ESPN's Wendi Nix reported from Green Bay that Favre's plane was scheduled to touch down at 6:30 ET, though he didn't plan to attend the sold-out Packers Family Night at Lambeau Field, which more than 60,000 fans were expected to attend," according to ESPN's website.
With a day off on Monday, the Packers don't actually practice until Tuesday again. It certainly is a media circus all the time, but it shouldn't hit fever pitch until Tuesday. It's possible that some sort of agreement, arangement or trade could come before then.