Be real Undertaker, HHH, Batista, Mysterio, Show and some of these other guys don't belong in this discussion. If you're talking about BIG STARS that truly move the needle and can carry the company for the next decade, it's Rock and Austin, then Cena in the new era. Rest of these dudes were all supporting players.
Reason it's not happening now is WWE conditioned you to believe nobody was on Cena's level for the past 15 years. He always comes out on top and anyone who got close was brushed off to the side, so now that's why business falls when he's gone because fans believe Cena is the big star and nobody can touch him. They are finally starting to get guys over on him like AJ, but as great as he is he's not the kind of crossover superstar that can carry the company.
Also the company is so bad creatively right now, that guys who have talent aren't being used in interesting ways. Imagine if Cena stayed as the whitemeat bland guy he debuted as, instead of becoming the rapper gimmick. Nobody has interesting gimmicks or characters anymore.
More I watch of this Kenny Omega cat he might be the one
I'm talking about both guys who will carry the company, your Mt Rushmores (Hogan, Cena, Austin, Rock), as well as the guys who aren't in that stratosphere but are still iconic af regardless (Taker, Sting, Berg, Orton, HHH, Batista etc.). WWE has none of the first, and only 2 of the second (Brock, Roman). Meanwhile, right now the WWE has an abundance of guys who, like your Edges, Jerichos, maybe even Foleys, are bonafide main event world champion stars, synonymous with the product, but not exactly iconic with that fortified brand recognition. The Mt Rushmores = A+, the icons = A-, the bonafide main eventers = B+. WWE got a whole lot of B+'s, 2 A-'s, and no A+'s. And I'm only talking popularity here, not skill or anything.
How do you not even mention D Bryan & CM Punk...
I did
Bryan and Punk, both of whom came close, were either held back by booking, injuries, or both.
Read the whole post foo. They're not in that conversation because their careers and runs didn't pan out the way they potentially could have. They're in that Edge/Jericho/Foley sphere.
peep the numbers Daniel -700 Million TA drew as champ

he wasn't a draw in the slightest for casuals, just hyped the smark crowd that was watching anyway
My thing about the Daniel Bryan situation is that the fans we know today as casuals / people who used to watch and nowadays just pay attention every now and then left because they either outgrew the product or just don't enjoy the product anymore. It takes more than just a couple months, which is how long Bryan's run was, to bring them back in. Bryan was the most over superstar on the WWE roster since John Cena in his prime, that's a fact. Bryan consistently drew ridiculous pops and still draws an instant reaction to this today, that's a fact. And its not all smarks who are in these crowds, and the IWC is no longer a restrictive term like that because Twitter exists and everybody has WiFi. If Bryan's run was longer, who knows where he might have took it.
The real concern is they keep pushing failed concepts like Reigns not that the talent isnt there. They just dont have much of a pulse on the business outside of Regal and Noble
Reigns has all the talent all in the world, he's just unpolished in one area (talking). I don't buy what people say about Reigns not being a star - he popped the crowd every single time during the Shield run and if you just watch him without the preconceived biases you'll see he has the it factor. His talent on the stick is the only fallacy because he wasn't brought up in the PC like these new guys. Everything else though, he gets it, and he's got it. He's super over with fans who don't give a fukk about workrates and technical flippy moves, and he's really popular with the kids and the female audience, 2 areas of the audience that really help the product.
Its not like WWE hasn't had chances to make Superstars. They just always fukk it up when they get hot:
Ryback
Ziggler
Bad News Barrett(Took away the whole damn gimmick

)
Bray
Alicia Fox
R-Truth
Del Rio
Yeah WWE's had a lot of chances, but as I said, from about 2007-2011 Vince refused to properly push any new stars for whatever reason (McIntyre, MVP, Ziggler, Truth, Rio, Barrett) or just completely botched the booking (Everybody you just mentioned). Just recently, I'd say 2014, the WWE has began a new initiative to at least try and properly manufacture new stars. However, we're only getting Edge's, Jericho's, and Foley's, and no Orton's or Taker's besides Brock and Rome, and certainly no Cena's. So is it a problem with the talent, or the booking, or do we just have to give it time for this current generation of viewers to grow up and more influentially infuse these guys into popular media
In what world is Brock Lesnar not a star? CM Punk was UFC third largest ppv draw in 2016 aside from Conor and Ronda. He had to be a star to some point, right? Daniel Bryan became a bigger star than Punk or Paul Levesque ever was. I dont see the issue yall are referring to. Cena was supposed to have been phased out for Roman Reigns two years ago, and Roman flopped, leaving there to be current limbo in that regard, but WWE is WWE #1 draw, so thats minor.
I wrote in the OP Brock and Roman are the only ones who are in the conversation but thats 2 people over the span of more than a decade.