Everquest is probably my favorite game of all time with the most amount of time played. I spent years playing that game. 2nd was the Lord of the Rings Online.
Every MMO I've tried since then has been less than a year (ESO, Neverwinter) Also tried a different genre, like Elite Dangerous. I seem to have more time now to play, but everything that comes out nowadays doesn't seem to hold my interest enough to dedicate a lot of my time and effort, even if it's free to play.
Still waiting for Everquest Next to give it a shot, but I'm really getting tired of waiting.
I would not pin your hopes on Neverquest, I do not see it coming out, if it does it is likely going to be very disappointing. I would expect Pantheon and Saga of Lucimia to both come out before Everquest Next despite being Indie MMOs, and likely be more enjoyable too.
Favorite online game was probably EQ1 for me....come to think of it, I guess it is again now I am playing on the P99 server. Having tried many MMOs since, 18 months tends to be the max I can get before losing total interest.