Yeah but remember the higher end Mac mini is quite obviously still on Apples website as that is probably going to get a refresh also which will fill the gap between the M1 mini and Studio.
I expect the Mac mini is going to basically an iMac without the screen, the higher end Mac mini will likely fill the gap between the M1 mini and Studio… probably giving you the Pro chipset…
So overall you will have the following line up…
ALL IN ONE
iMac M1, M2, M3 etc…
TOWERS
Mac mini M1, M2, M3 etc…
Mac mini M1 Pro, M2 Pro, M3 Pro etc… (this will likely be refreshed with the M2 Pro rather than the M1 Pro as currently rumoured).
Mac Studio M1 Max/Ultra, M2 Max/Ultra, M3 Max/Ultra etc…
Mac Pro M1 Ultra (likely modular, upgradeable etc… coming later this year)
DISPLAYS
27” Studio Display
27” Pro Studio Display XDR (coming later this year)
Then eventually we may see a 32” Pro Display Super Retina XDR as Apples most high end display…
Side note: the reason why the higher end Mac mini hasn’t been refreshed as of yet is likely because that is what the majority of the market are waiting for (a tower with the Pro chipset), therefore, Apple have launched the studio first with the hopes people will pull the trigger on it, then they will launch the higher end mini later, so as not to cannibalise the Mac Studio sales.