With it being so close to WrestleMania, I think that they will indeed be waiting until his match with Jericho there to be Fandango's début match.
The Rock getting the upper-hand on John Cena and hitting him with a Rock Bottom, reinforces to me my expectation that Cena will be the winner in their match - though does/did anyone else expect differently anyway?
It's obvious that Kaitlyn will be the one to even up the odds for Team Hell No at WrestleMania, but I'm unsure whether it will be by her and AJ both accompanying the teams, or whether they will instead focus on each other exclusively and have a Divas Championship match with neither accompanying in the Tag Team match.
Of course, it could be possible that it will be a Divas Championship match AND accompanying for the Tag Team match, but it doesn't seem clear enough yet. Either way, I think it makes a lot of sense to have the Divas Championship match, as it would be ridiculous for Kaitlyn to not be defending her title at WrestleMania.