In 2 years, when all of Classics Phases are out, you have to wonder what the player base will be. If it’s still as in demand as it is then I’d say you’ve got a good shot at Classic+.
But if it’s dying out, I would imagine they would just release TBC, Wotlk (if anything). They KNOW people would come back, even for just a little, and they wouldn’t have to do much to do it.
Re-releasing TBC/Wrath would give them a nice boost of subs, and everything they need they already have.
Personally, I hope we see Classic+. No QoL crap, but new content that we never got to.
Also zones like:
Gilneas, Hyjal, Wildhammer Homeland all “un-Catalized”.
Kul-Tiras, Zandalar but not so Retail cartoony.
Sadly, I don’t see Blizz being capable of doing this.
Edit: Blasco, you nailed it, imo. Classic gameplay, new content. 2 very different games serving 2 somewhat different types of players.