Yes to most of all this.
I'd liken WWE to McDonalds.
It's woven into culture as an individual entity.
Some people go as far back as Hulk Hogan. Others to Shawn Michaels, Bret Hart. More when it was The Rock, Stone Cold, Triple H. And The Undertakers never been away. Then there's the modern day which I guess has been Cena, Orton, the Shield.
I did find WWE some of the most captivating TV in the early 2000's. Maybe it was. Or maybe I was just the right age for it then.
Whenever I see any these days it feels like someone doing a bad HD parody of it. With less laughs. Less drama. Less rude suggestive side shenanigans.
But WWE will continue as a global super brand for quite some time I would guess. Will kids today be watching the sparkly, shiny HD WWE & thinking if only it was way back whenever? No. And I doubt many teens have gone back further than 2010's on the WWE Network. So the nostalgia for future parents will continue on into future generations when the kids of today decide to allow kids of their future to start following it, because they did themselves, or everyone at school is, etc.
WCW got seriously close to challenging WWE/WWF, but it was WWE's none American audience & income that helped it to win out. From what I've seen of AEW, it's not what the kids will be fascinated by. It is kind of dad's TV. Purists TV. The alternate seekers choice. etc.