Well , let's go back 5-10 years ago.
No such a technology has been designed, why ?
No need it.. Servers was full of players.
Now new games, new technology, RTX 4K
Fotorealistic games took control over.
Lineage 2 is mostly for veterans, everyone who still enjoy climate of L2 wants to play, they will.
AI works both ways, can help to go up or down.