:D!!!
FIRST THINGS FIRST BEFORE I GO ONTO THE FANSERVICE:
I WAITED 78 EPISODES FOR THIS. SCREAM.
And for the stuff everyone else cares about: so, first we got surprised by getting some silhouettes! I, uh, think these are pretty obvious if you've watched the seasons. Buuut just in case...
Sora, Garudamon, and Beelzebumon / Miyako, Aquilamon, Ikuto, and Ravemon
SaintGalgomon and Blitzmon / Iori, Ankylomon, and MagnaGarurumon
Mimi, Lilimon, and Sakuyamon / Angewomon, Angemon, and Justimon
JYOU AND GOMAMON AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH -- I mean.
Jyou and Goma were the only ones who got speaking roles, but.
IT WAS STILL REALLY AWESOME TO SEE, OKAY.
And then ALL THE OTHER AWESOME:
Needless to say, I am content.