I think, in a way, it makes me mourn (yeah, maybe that word is overkill) for the stories that I know and love
And that strategy worked perfectly. Retailers reported extremely healthy sales on all ST DVD boxed sets after the theatrical release of Bad Robot's movie: not only TOS sets, but TAS, the movie sets, TNG, DS9, VOY and ENT. At a time where sales had been expected to dwindle, with every set now having been out on DVD for ages, a new ST movie had suddenly stimulated old fans to revisit what had gone before, and new fans to investigate what they had missed. Good marketing!
But it does exist. The writers told us at the time, "think Parallels", the episode of TNG. Then they co-plotted a comic mini-series, "Countdown", which shows that the 24th century we know and love continues after the disappearance of Ambassador Spock into the black hole.knowing that with this new timeline they will never have existed.
We don't know that they have gone back to Khan. The writers floated the possibiilty that, if Khan shows up in the new universe, they would probably have a different tale to tell with him in this new timeline.But you illustrate my point quite well! They DO have a completely clean slate! Introduce new villains and completely unseen missions! Why go back to Khan?
Look at the fan speculations. Some are asking where lots of characters are in this new timeline: will we see Chapel (only namedropped last time, and an offscreen "Yes, doctor"), Rand, Garth, Norman, Kor, Q, and so on.
The last movie had a new villain, Nero. To go with another new villain this time, you have just as much chance that some people will complain, "But that's two movies in a row with a brand new villain. Why can't we revisit an old one and see what happens to them in this timeline?"