My 2c? I think the vanilla WoW is the perfect mix of things if you want that "classic" vibe. You can play for hours and none of that shit is downtime, staring at your spell book, or whatever the fuck, its just fun. Still took tons of hours to level and even more to gear yourself out, but none of it really was tedious or riddled with downtime. It was smooth and responsive as well. Yeah I was an EQ diehard back in them days, I thought wow sucked. But now? Shit, totally opposite. Ive leveled several characters across multiple servers when vanilla came out and the years after. I want to be entertained when playing games, not frustrated. I tried P99 or whatever that server is called and lasted all about 2 hours, until I died, could not find my corpse and said fuck this shit im out. Same with Pantheon afew hours and I was done. Like I said, im older now and value my time. So should the game.
Last MMO I really got into was New World through the whole COVID thing. Met some cool peeps and just did stuff together. Played the shit out of that game. None of that game was tedium or old systems relying on downtime or whatever. Yeah it had no end game and that was its downfall but I sunk like 800 hrs into that game.
Its not to say this game wont have a market or whatever, im sure it will, but a mass market it wont be if they stick to the whole 1999 tedium thing.