Main event depth wise as I ran down isn't what it once was though. I mean if we look at the roster right now...this is the depth....
Edge
AJ Styles
Roman Reigns
Bobby Lashley
Drew McIntyre
John Cena*
Kevin Owens
Big E**
Randy Orton
Rey Mysterio
Seth Rollins
The Miz
Brock Lesnar *
HHH **
Goldberg *
Right now the WWE has 10 main event level guys they can go with. These are the guys who are not semi-retired and can go right now in Main Event scene.
* - These guys like Cena , Goldberg and Brock Lesnar are now semi-retired and come back for brief runs. They aren't gonna carry a main event scene long and usually work a big PPV or 2 a year and go home.
** - Big E and HHH may never wrestle again. Trips had heart surgery and I can't see him risking future health for matches. Jerry Lawler works matches still from what I have heard but would HHH put himself in risk for that ? Big E's neck injury could be the end of his career sadly.
Adding Cody if he's slotted in gives them 11 main event stars in here. There isn't much depth and this reminds me of the 2000s era where the WWE didn't have big depth then due to TNA signing talent then. So the company is in that same position right now. They are trying to re-establish a new set era of main event level guys I'm sure. But its gonna take time for Bron Breaker and others to get there.