All, or most of the Trolls are Armoured Closet GayThey use gay as an insult to hide the truth from themselves. The Red Haired troll in particular was calling sonic a faggot and telling him that he likes to take his girlfriend's mayo in his face, but when Sonic went berserk and killed his friend, he revealed that he loved his friend.
There's more to Emo Troll/Alex than meets the eyeI just find it interesting that he mentioned twice that someone was more fucked up than his group was
Trollface might end up as the Big BadHe's clearly more unsympathetic than his father, threatening to rape anything he can
Rob, the guy with no ears will be revealed to know the endgame shoutsThis includes the Call Dragon Shout
Hello Kitty might end up as our hero's potential love interestShe did think he was cute, and she did talk to him some more long after her training was done
Pac Man might somehow be responsible for defeating that other Dragonborn guySome sort of irony for being lazy and not searching for him more in the past
Shadow and Alex/Emo Troll are somehow relatedJust look at their hair colors
Dexter's reason for joining the Defenders was because of Deedee's trollingOne day he finally got sick of it and decided to do something about it.
The entire story will turn out to be one of Tails' dreams
Alternatively, the entire thing is a play and the characters are all actors
Kirby will make a reappearanceDonkey Kong appeared long after that three way gag, so why not.
Ronald McDonald's Berserk Button is being called crazy and he is aware of itWhenever Tails called him crazy, he explicitly stated how Tails should be careful about what he says and how it can affect other people, while he chokes him. After being beat up, Ronald McDonald breaks down in front of Pac-Man and states how he messed up. This could make him a Jerkass Woobie.