Here's my Hairspray thing. I love it so much, but I think everything that could reasonably be done with it was done in the initial very long production. Will there ever be a better cast than the original? ... Well, maybe Hairspray Live was similarly excellent, but even then... Really consider the stars that aligned for that unbelievably exceptional original cast. I mean, Harvey Fierstein as Edna is probably one of my favorite performances on stage ever, up there with John Cameron Mitchell in Hedwig and Alfie Boe in La Boheme. Marissa Jaret Winokur was, as far as I'm concerned, perfect and irreplaceable. I have never seen a Tracy that I liked even half as much. Matthew Freaking Morrison got his start in Hairspray, and you don't get much better than him. Not to mention Laura Bell Bundy, Dick Latessa, Kerry Butler, Corey Reynolds, Mary Bond Davis, Jackie Hoffman... Clarke Thorell was alright too. Linda Hart was kind of not very good, honestly. If they do do a revival, I'd like to see what they do with that role. Kristin Chenoweth played it in Hairspray Live, but I don't think she will ever do such a small role in a Broadway show ever again. I think that the last time she ever would've done that was... Well, Steel Pier. I just have trouble imagining who could even do this show? That's to speak nothing of the direction, the choreography, the sets, the initial excitement of such an adaptation, and the fact that, as many others have stated, some of the material may be a bit dated. Now, if they revived it, I would be with decent certainty that they'd bring in Harvey to revise the book. They already did for Hairspray Live, and he was responsible for a lot of script doctoring on the original, it's almost a no brainer. But there's not much you can do, really, to make it not be dated, other than just totally change the story.