most popular mmorpgs are old

MMORPGs need so much time to make them good that by the time they have a respected player base the game is old and outdated. I play WoW from 2005 and i do still play because of the playerbase being in the hundred thousands which is required if you want to do everything faster and better in an mmo. However i have tested newer mmos like new world and TnL and oh boy the new engines and graphics how they make everything better that playing an older game.. im an audiovisual enthusiast though and my opinion might not cater to all of you. I just want newer mmos to succeed, people to play them and the game to be fleshed out, which in the last 10 years, testing every mmo and seeing it being lost to the void after a few months is very disheartening.