It's probably peaked.
This thread probably won't age to well in 2-3 months or a year.
YouTube ad revenue already drying up, don't expect the D&D movie anytime soon if ever.
It's not impossible D&D stays where it is but yeah.
Amazon's also been closed in some countries and/ or can't deliver and the USPS isn't looking so good.
Don't be to surprised to see class action lawsuits vs Amazon either
Not all the comic and gamestores gonna survive and are closed.
Nothing grows forever, but I don't see imminent collapse either. For many people D&D is cheap entertainment compared to the alternatives.
I mean, when the alien AI zombie apocalypse arrives it will probably take a bite out of sales but we don't know when that will happen.