I feel the current state of the hobby, and the missteps of Hasbro/WoTC, make it even less likely that Hasbro can hold on and will be okay. Firstly, for the number-crunch-heads, Paizo, which was basically birthed in the 3.5->4.0 WoTC misstep, has been just waiting in the wings for another break. Their V2 is playtested and customer smoothed and popular already.
Secondly, the SRD debacle unleashed a three-pack of significant, worthy competitors that are just coming out now, with varying power and buzz:
- Critical Role's Daggerheart has a built-in fanbase, the star power and uber-DM skills of DM Matt Mercer and the the cast and their own world of Exandria that is as populated as any Forgotten Realms at this point, along with decent design that is more in tune with the Critrole style of play that Actual Play streams have taught new and dialed-in players to expect;
- Matt Colville's heroic-focused Draw Steel (aka MCDM RPG) has another famous online DM and rulebook maker that champions the good parts of D&D 4e, he has his own legion of fans ready to spend money
- Kobold Press, another group with a track record (Tome of Beasts, etc), who has their Tales of The Valiant and their own customer base
And thirdly, pile on top of this the trends in OSR gaming with rules-light games that play old content in less crunch ways, such as Cairn and Knave among others, and even a former D&D designer, Mike Mearls, is in the process of standing up his own new game along the similar lines to above. They are rapidly growing fan bases and fan content with their easy of use and SRDs.
And you could say that these trends always happen, and there is always a gurgle of games Powered by the Apocalypse or whatever, underneath the mass market, but I think we've never had the sort of fan bases (look at how Critters funded a Critical Role TELEVISION SHOW) behind these newer and fresher RPG experiences, with built-in worlds that fans already know, deep content that is already there if a new player has interest, and just dollars ready to be pledged to keep these things going.
What does WoTC/Hasbro have that they are missing? I guess you could say that there's now another generation of kids with PHBs that are intimately familiar with D&D from summer day camps and Stranger Things, but are they wanting to buy the D&D 5.5 DM Guide, when they never probably even cracked open the 5.0 one they got for Christmas 3 years ago when their parents funded this new hobby for their brains and development?