Don't bet on it. Everything in WWE is so sterilized, Fisher Price WWE titles, Be A Star this, Linda's repeated failed Senate campaigns that, etc. Anything that even remotely rocks the boat, they'll get some over entitled organization devoted to equal rights for this group or that one demanding an apology for it, which they'll cave into to prevent a PR
fiasco. Nothing indicates to me that we're headed towards an edgier product. Yeah, whenever Rock comes back he says bitch, and the only reason he says that is because he's Rock and he makes the rules, and he won't compromise his character for an appearance. WWE has to play within his system or he stays away and they don't make as much money. Other than that, that's about it, nothing stands out and says "WWE is getting closer to an edgy product".
Even if they did go edgy, WWE damn sure isn't gonna let their characters flourish in their natural habitat. That habitat doesn't even exist anymore, WWE came into the forest with a steamroller and knocked all the trees down. If you don't get that analogy, it basically means character development for the wrestlers was axed because they think we need an hour and a half devoted to the boss character, the damn irrelevant boss character that contributes nothing to the product taking a shit. And I don't mean Laurinaitis specifically, I mean any boss although he's certainly the worst culprit.
As for cookie cutter superheros transforming into heels, good luck. The fans turned Cena heel 6 years ago but the front office doesn't seem to have realized it.