Nomenclature aside, what NEED is there for 6e right now? Put yourself in the shoes of WOTC. Why would they want to release 6e? Are sales lagging? No. 5e prints money. So why would they want to shut off that printing press?
I'm just not seeing it. I'm thinking that WOTC might adopt the "Windows 10" model - no massive upgrade. Just regular incremental changes to address things that don't work.
I'm not saying 6e is coming out this year. Or next. For many of the reasons we all know and were mentioned: it still is profitable.
Only that comes a time when an edition has pretty much covered the vast majority of archetype options, has covered the big settings, and ends up putting out material just to put it out that doesn't appeal to the majority and thus doesn't sell as much. I'll give the 5e team a lot of credit here, because the decision to go with a slow release schedule really helps mitigate this.
Then there also comes a time when a lot of the things in that edition become outdated or even problematic. Strength caps for female PCs for instance. Excessive nudity. And agree or not, at the time, having demons, devils, and assassins. There is precedence for having a new edition in part as a reaction to public perception. While we've largely moved past the satanic panic state, we very much are right in the middle of the other problematic areas (stereotypes, racism, inclusiveness, etc).
And there comes a time when the supplemental material you're putting out pretty much overrides and/or replaces the core material, even if it's technically backwards compatible. Is anyone playing a PHB ranger? With Tasha's how many people will still use the defined racial modifiers? It is AL after all. I suspect more and more will use the changes from Tasha's than will not.
so the question is, where does 5e fall in those three areas?