The only thing missing from that trailer was Dipper-Author interaction.
australet789: GUYS LOOK AT MABEL’S SWEATER!IT’S A BIRTHDAY
wekilledbatman: Yep this is me right now.
gravityfallsinfinite: I can’t be the only one who thought
gravityfallsinfinite: Oh my God.I was hinted to whatever is
gravityfallsinfinite: The Prophecy.