Re: So, who will be the first champions?
The World Title obviously, with Jericho being the obvious choice for inaugural champion. He's the most well-known performer that they have right now, a legend in the business for decades, and if you want to draw some causal viewers/lapsed WWE fans to the product potentially, then Jericho being champ when they debut on TNT is the obvious choice.
The Tag Titles, either The Young Bucks or Angelico/Evans is my guess for the first champions.
The Women's Title, after last night, Britt Baker seems like the frontrunner to win it first, although perhaps they might go with Hikaru Shida potentially.
Some kind of midcard title, there's a reason why pretty much all major promotions have them and always have. Also it'd be a great opportunity for up and comers like Page or MJF to show off what they can do without being thrust into the top spot too early, or some older veterans like Daniels or Kazarian to be feature potentially.