Most RSPS today are OSRS based and generic with the same old content. I don't think RSPS will be as popular as they once were back in the good old days but there are still some, like Ikov, going strong.
I was the rank 1 overall on the ikov re-release for the first month. My username was Own and I am still on the front page even after quitting.
Also co-owned a server in 2015/16 that peaked at 40 players.