It has been a long time since theymos has accepted a merit source application if I'm correct. So, I don't think it's going to happen anytime soon.
Its been a little bit more than a 2 years (July 2021) since theymos introduced new merit sources so maybe exactky that way we might get new ones sooner than later but I think that mainly depends on the amount of merit shared, which is currently pretty good.
Please check the merit information from @mikeywith - are you sure the application has not been approved?
Yeah he has been approved but I guess OP simply checked status of merit source application (and mikey didn't lock his or tagged it as accepted) and their stats to verify whether they became merit sources or not.