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