What you're describing sounds like an excellent basis for a weekly series.
That would be even better, but as long as Les "I hate Trek" Moonives is in charge at CBS...
STXI+1 won't have time for ~anything~ complex and multi-faceted. For better or worse, Trek is now a big budget summer movie series with fresh Trek in a single two hour chunk every couple of years. That has a huge effect on the kind of stories they can tell.
If that's true then the future doesn't look too good. Trek is and always has been a franchise that SAID something. Even where you had a nemesis/adversary they weren't evil for "evil's sake".
The existing fanbase turned out for this one and seems to have given it a pass on the paper-thinness of it's plot and adversary. Sooner or later (I suspect sooner), they are going to want weightier fare.
If JJ's team doesn't deliver, they'll start leaving again, and I don't think that the "mainstream" audience was big enough to put XI in the blockbuster catagory on it's own.
To do this story justice would take major screen time away from the core cast. The tipoff for me is that you described someone other than the core cast as a lead. I don't care how interesting a given antagonist might be, I'd much rather see Kirk playing off Spock and McCoy.
Why can't we have both?