JJ Abrams and the beautiful dying fan marketing tradition :-)
It seems that JJ Abrams has adopted a wonderful tradition: once the movie is finished, look for some fan dying so you can show him the movie and get free headlines in the press with lots of tears!
He did that in Star Trek Into Darkness, 2009:
Fan Granted Dying Wish for Star Trek into Darkness Sneak Peek
http://entertainment.time.com/2013/01/07/fan-granted-dying-wish-for-star-trek-into-darkness-sneak-peek/
He repeated with Force Awakens, 2015:
Disney Lets Dying Fan Watch Star Wars: The Force Awakens Before Release
https://time.com/4102195/star-wars-the-force-awakens-forcefordaniel-daniel-fleetwood/
Ryan Johnson copied the marketing strategy in The Last Jedi:
Veteran Whose Dying Wish Was to See Star Wars: The Last Jedi Has Died
https://people.com/movies/veteran-whose-dying-wish-was-to-see-star-wars-the-last-jedi-has-died/
Marvel saw the marketing value and used it in Avengers Endgame too:
Marvel 'to grant' dying fan's final wish letting him see Avengers Endgame early
https://www.mirror.co.uk/news/world-news/marvel-grant-dying-fans-final-13885958
And then JJ Abrams is using it again:
Star Wars The Rise of Skywalker: Dying fan gets early screening
https://www.bbc.co.uk/news/uk-england-hampshire-50604298
It's nice to see how marketing improves. I wonder, though... what they do if they don't find some dying fan, do they kill one? Locate some fan, hire some hit man, and tell him 'be sure he won't have much time left, but enough to watch the screening so we can take pictures and send them to the press! :-)