Until then, DX should still be in their plans. They did relaunch/fix the Z50 in the form of the Zfc. The Z6 and Z7 last got minimally updated in 2020, much less changes than what the Z50 got when it became the Zfc. So yea there’s a long list of cameras that needs to be updated and that is going to take time.
I agree that the Zfc should be considered a relaunched Z50, but in no way did it fix the Z50! In my opinion calling the Z6ii/Z7ii minimally updated is at best true and at worst an overstatement. In essence they were a fix.
Nikon assuredly has a long list of cameras that needs to be updated, but just how long does it take? It's been six years without a proper update to the Z6. Just how long can any manufacturer ignore the middle class w/o falling into a niche status? In my opinion Nikon is in danger of niche status catering to the high-end and retro market only.