Kirk is Kirk.
Except when he's Gary Mitchell, which is essentially who Pine was playing.
I'm not suggesting that the creators had Gary in mind when they wrote Kirk, just that the rather standard-issue charming bad boy depicted by Pine has more in common with Mitchell than with the Kirk of TOS, particularly of S1 TOS. Pine's Kirk is
a fairly decent back-extrapolation from the Kirk of TWoK but there are more than one way to arrive at that kind of outlook in mid-life.