#2 TV-14
When he left WWE, it wasn't confirmed that AEW would be TV-14, but it was for certain WWE wasn't going to change. But now he has confirmation, he is probably gearing up for a deathmatch or two.
People in the past, such as Batista, have been vocal about their dislike of WWE's PG programming and although it might seem like it, not all the talent is on board with what WWE does these days. Someone who would have been angry at this is former death match extraordinaire, Jon Moxley.
If you needed any proof of AEW's non-PG look for wrestling, the more adult language and the blood spilled by Dustin Rhodes during his match with Cody should be enough proof for you. Jon will be given the freedom to do pretty much whatever he wants during his matches and that must be more appealing than Vince McMahon shooting down all your ideas.