I would like to see the Borg assimilate the alternate Universe
I would like to see the crew of the current USS Enterprise fight boldly but ultimately recognise that their fighting a loosing battle, rescuing survivors and running from Borg Cubes...
I would like to see the USS Enterprise - E, the USS Titan follow the Borg into the alternate Universe to join forces with the new USS Enterprise crew but concede that the only way to defeat the Borg is to fly everyone back through the now stable black hole into the Prime Universe's 24th Century...
They collapse the black hole
Thus bringing Kirk and Co plus a convoy of ships from the entire galaxy into the Prime Universe! This could potentially cause huge conflict not just between the different alien races but between the different crews!!
Little do they all know though is Khan (Benedict Cumberbatch) survived the assimilation of Earth as did his family and, half assimilated but detatched from the Hive Mind (Locutus style) Khan goes after Kirk and Co and enters the black hole just before it collapsed...
So now all the great parts of the Alternate universe are in one Universe....
Bit of a fan-boy idea and a mess of ideas really but could it or aspects of it work and what are other people's ideas?