I concur on the 3x Time-Lines theory.We don't need more universes. We've already got 3 effective continuities: TOS to ENT, Kelvinverse, and NuTrek (it may not be another universe but NuTrek and TOS are discontinuous; its a reboot, plus, the average Joe would not be able to identify DIS S4 as being Trek).
It makes the most logical sense and fixes any continuity gaffes.
The continuity always felt like a branch from Enterprise NX era to the KELVIN then branched.

If you're going by popularity as to which Time-Line / era to spin-off a new movie.Given the fact we've had several spinoffs from DISCO would be a strong possibility the numbers were good enough to move forward. I don't doubt Viacom could brand and sell a new Trek for a movie going audience with DISCO if the story was compelling to tell. The visuals on DISCO is on par with motion picture quality of production... why not go a little further making it a mid-budget Star Trek theatrical venture?
It's not going to be DISCO. If anything, it's probably going to be in the early 25th century right around ST:Legacy's time frame.
