Remathilis
Legend
The thing is, I think the new books being called 5.5 or 6e or whatever only really matters to people who want to use it as a hard break, typically as an off-ramp. It is so much cleaner to say, "I'm not upgrading again to 6e, I'll stick with my 5e" than it is to say, "I'm running 5e, but I'm only using the rules before 2024 (or Tasha's, or MotM, etc)." WotC wants that continuation. They want to advertise your favorite 3pp which is making 5e compatible stuff will work with your new books. They want you to buy the Vecna Adventure and run it with your 2014 Core Rules. They don't want you to say, "I'm getting off the treadmill" as much as they want you to say "hmm, I'm not using the new core books, but I will buy the new adventure or setting" or "I will use the new books, but I'll run buy and run Ghosts of Saltmarsh with them".
I realize there is a small group that bends the other way too; preferring that 6e was a clean break from 5e so it can reinvent the system akin to 3e/4e/5e, but that I feel is a pipe dream. 5e is too popular for radical reinvention. They aren't going to kill the golden goose just yet.
In the end of the day, I think most people will treat '24 as a mini-edition. It's useful to know which version of the warlock or barkskin your DM is using, but Curse of Strahd or Storm King's Thunder will be mostly unchanged by which version of the rules you are using.
I realize there is a small group that bends the other way too; preferring that 6e was a clean break from 5e so it can reinvent the system akin to 3e/4e/5e, but that I feel is a pipe dream. 5e is too popular for radical reinvention. They aren't going to kill the golden goose just yet.
In the end of the day, I think most people will treat '24 as a mini-edition. It's useful to know which version of the warlock or barkskin your DM is using, but Curse of Strahd or Storm King's Thunder will be mostly unchanged by which version of the rules you are using.