One of the reasons I hated Into Darkness so much was because of how many moments & plotlines it lazily repeated from the first movie and the ST franchise in general. Kirk's ego gets him into trouble... again! Kirk is demoted and has to prove himself worthy of the Captaincy and Pike's respect... again! Kirk free falls towards a small target from outer space... again! It's an insane Starfleet Admiral going rogue... again! Exactly 72 of Khan's followers from the 20th Century survived... again! Khan comes back and kills off an Enterprise crew member... again! It's Kirk & Spock separated by glass with one of them dying... again! Someone yells, "KHAAAANNNN!!!"... again! Spock loses his temper and beats someone up... again! Kirk listens to the Beastie Boys... again!
For God's sake, we've seen all of this stuff before, and done better. Do something else.
And Khan’s magic blood, completely neglecting how the properties it had could have resurrected so many in either universe. Tasha Yar. Jadzia Dax. Trip Tucker for time travelers from the 29th-31st century. Countless red shirts. Technically, no one should ever die again in Star Trek because of Khan's blood. And if it was known it had the properties it had in the prime universe (presuming Dr. McCoy took a blood test of Khan in the prime universe, although we never actually see it) it would mean its locked away in a Section 31 vault somewhere. If not outright destroyed. It’s a terrible plot device that messes everything up worse than the TCW arc in ENT.
Upon discovering the Countdown to Darkness comic, I think this story would have made a far more interesting Kelvinverse movie than Into Darkness.