There's this little glockenspiel leitmotif which shows up in the JW Fallen Kingdom soundtrack and combines with some really sad string motifs to suggests that the movie should occur around Christmastime, there should be snow, and a kindly old man passing away should be a lot more heartbreaking than it actually was in the movie (JW was technically a Christmas movie, Fallen Kingdom isn't afaik).
I blame Danny Elfman.