The MMO market is super saturated and aren't as profitable vs. maintenance cost. So the risk of a bust is real in an age of gaming where companies are scared to innovate and want to stick with formulaic titles or just go for the easy money with gacha games and Surprise Mechanics in $60 releases.

When(if) it comes out, I think the League of Legends MMO is gonna show what the future entails for the MMO genre. Riot has the money, the expertise, the lore to supply a online world(even if you don't like the LOL or Legends of Runeterra). Do they stick to the current MMO formula, go the more RPG-MMO route like 14 or try to strike at something new and original and take that big chance. If it succeeds maybe another AAA sized company or two with a storied series(wishful thinking Nintendo doesn't have a mainline MMO) will give it a go.