Apple fixed its faux pas with the Studio Display firmware, which did more than provide some fixes for the display—it may reveal a new Mac that's coming soon.
Developer Steven Troughton-Smith pointed out on Twitter that the Studio Display 15.4 firmware update includes a reference to a Mac mini that's not yet available. Troughton-Smith first speculated that Macmini10,1 could be a Mac mini with a new M2 processor, but later he changed his mind to an M1 Pro and Max model.
There are persistent rumors that Apple will reveal a new Mac mini this year, possibly at WWDC. It could make an appearance alongside a new Mac Pro and possibly a revamped MacBook Air.