I realize this is all speculation, and was simply reacting to that speculation.
If you're doing a 50th anniversary movie, Kodos the Executioner would make a great villain of a colony world gone mad.
I just don't want to deal with another villain-centric move, much less a villain-centric movie featuring a villain from the Original Recipe™ TOS. That kind of story would come with more agonized fanbourgeois hand-wringing over the "accuracy" of the presentation.
To be fair Kodos is far less well known than Khan, but still it just doesn't work for me.
In addition, do we want a story focusing on suffering and death inflicted on a single colony? Why. can't. we. have. a. film. about. exploration. One of the BEST scenes in STID was the opening one on the PaperMache people planet. It was new, it was original, it was fun. You know, like Star Trek used to be.