As someone who has played since Vanilla making a WoW 2 always sounded me to me like a terrible terrible idea even untill recently.It was untill the last expansion that made me change my mind.
I honestly think legion was an excellent expansion it made so many things right, rep grind through world quests(made it enjoyable) artifact system.
- Beautifull levelling system by being able to level up at any region(one of the best implementations in the game)
-No more stupid garsissons being isolated
- The raids were also nice.
Everything was going fine untill 3-4 months into the expansion i realised i was utterly bored and for the first time it wasn't the game's fault, i was bored because of the same graphic engine the same rootine and the fact that my chars are 110 lvl currently i was bored of endless end-gaming. I was genuinely bored with WoW for the first time in 13 years.
A reinovated WoW 2 with new graphic engine new landscape,currently doesnt seem like a bad idea to me.