His return was actually a better heel promo than it would've been if he had actually used the mic and verbally attacked the crowd.
What've heard from Jericho is that he would only return if he could play a character that was different from what he's done in the past... something challenging for him. Something tells me we won't see a full-blown heel turn, or him as a blatant face, at least not for a while. We'll see him going after Punk, with some of the crowd behind him, and other portions of the crowd against him. To this day, Jericho ranks up there with HBK, The Rock, Austin, and a few others that will never be full-blown heel because of how much he's liked by the fans, regardless of his character.
Whoever this mysterious "she" is will also come into play somewhere as well, as that isn't something that the WWE or Jericho would use in the videos to merely throw away now that he's back. I think we could end up with another return, or an existing woman coming to his side. Well, I could see the WWE just dropping it... but not Jericho, and something tells me that he's been given a whole lot of latitude with how this story goes. This return is already better than his last one.
Oh, and Peter... this is only Jericho's second return to wrestling, the last one was in '07. He's also known for working any and everyone... so him saying that he was retired for good was either a ploy moving towards a comeback, or just something he felt like saying due to the near constant questions he gets regarding a comeback.