And this explains the Abramsverse version of Robert April's Enterprise in the comics.
Actually, based on this "deleted"/cut scene from "Into Darkness"...April's ENterprise (at least at one time) looked VERY MUCH like Kirk's in TOS (pre-refit) in the Prime Timeline (with only a few minor changes - like 2, instead of 3 little circle windows/deflector on the front of the saucer. And the window arrangement around the saucer-edges. It my have been wee *bit* BIGGER too. Plus there is the NCC # beginning in "0"...):
^But none of the DVD releases - even the expensive boxed sets - have any deleted/cut scenes....so that they can try to make the fans double and triple-dip...
(But, after these were leaked, Paramount took them all down...of course....)
That's sad that they didn't keep it in. I like all the little historical details of Starfleet that ended up in Marcus' office.
The prequel comic "Countdown to Darkness" featured a couple of shots of the precursor Enterprise. Not a lot to go on, but gives some decent information to work from, I think: