Personally, I fear that a lot of the recent discussion is striking at the heart, the identity, of the game. The discussion of inclusion goes beyond x or y setting or A, B, and C options, but to things iconic to the game. Races. Classes. Alignment. Ability Scores. The very description of elves, orcs, and other creatures. And while complaints about said things have existed for quite a while, the current climate we find ourselves in has raised the volume and forced WotC to have to respond to these complaints in a much more vocal manner. For now, WotC will play damage control; point to Wildemount or Eberron as examples of PC orcs, pull alignment from generic humanoid stat-blocks, clean up some problematic text via errata, or add an optional rule in a new tome (only $49.99!) to fix ability score complaints. And that will work, in the short run. but 5e was supposed to be thier "evergreen" edition and increasingly, while the mechanics of 5e might more-or-less be evergreen, I think there will be significant pressure to "update" the game to remove the problematic elements entirely, and that will mean a new edition with a different tone.
And it's what that will look like that gives me pause. D&D has changed before (I can recall the days dwarves couldn't be wizards), but the core components have remained. What will "race" look like once the term is gone and the concept revised? Will classes like monk and barbarian remain or are they too problematic? Will WotC change ability scores to be less ableist? Will Alignment as a concept survive? Do orcs, goblinoids, and the like enter the PHB? If they do too much, they risk alienating their base (like 4e did), change too little we'll be doing this again in five years. It's not an envious position to be in.
Perhaps it is the fear of the unknown that causes these fears. I like 5e as it stands. I personally see little wrong with it. But my opinion as a hetero-white-male isn't what is being considered. The game will grow and evolve, but I can't help but worry that it will grow past me...