At a certain point this game will need new content. Folks simply don't want to play the same content over and over again (whether high level or low). System tweaks and under the hood stuff is fine for maybe 1 or two pages a year. Beyond that folks are going start to wander to play other new games/shinnies/other forms of entertainment, as some of the stuff that couldn't get released last year cause of the pandemic starts to come to fruition this year.
(I say this realizing the micro size of our volunteer team that has actual day jobs).