There is still a lot on the plate for Abrams, the writters, and the actors. When I watch TOS the questions still pops into mind about their pasts. Now in one of the episodes, McCoy mentions that they known each other in the academy and but then Spock would then be assigned to a ship.
To me it just would be logical so at least get a reason why Kirk, McCoy, Spock, Sulu, Scott, Chekov, Uhura, Chapel, and Rand joined the academy in the movie. Yes, I know that Chapel did it to find her fiance. Also, we still dod not know the main argument between Spock and Sarek, Spock's reason for going. We just know that Sarek was dissapointed.