Alright. So this episode was great, but in terms of themes & setting the stage for the rest of the story, this line really stands out:
"You feel something. You look, the Night Yorb twinkling. You've spent your whole summer chasing this. You know all the things you've missed. Your whole summer vacation, all of your friends. Some of you had birthdays on the road this adventure, and yeah, there's lots of adventure, but all of you feel a tiredness in your bones knowing that the reward for saving the world yet again will be going back to school and having another year of working just this hard forever."
This monologue from Brennan is the most thematically/foreshadowy thing we get in the episode, and it does set quite the stage. This is a story about exhaustion and the price of adventure. It's a story about what the hells these six people are going to do with the rest of their lives.
Fig releases something at the end of the episode. Some piece of magic that will certainly mean something later. This is how it's described:
"You've been holding onto a piece of magic for a long time... If you take me, you know what you would save. And you smell something sour and curdled."
"There is a flash of light, a kind of lemony yellow creamy light that flashes out over the hangvan."
Pay attention to that word choice. The magic is "sour" and "curdled" and "lemony yellow creamy." Is it reminiscent of anything?
Gilear's connection with yogurt is established pretty early on in Fantasy High, and yogurt in general serves as a symbol for everything that Gilear is. A sad, pathetic adult and A Normal Guy. Brennan is very insistent when reading out Gilear's stats for the first time that he's just a guy! Some people have to be normal!
But our Bad Kids aren't normal. That's the whole point of them. They've saved the world. Falling to Gilear's level is terrifying. It's literally Fabian's nightmare.
From that part of Pirate Brawl:
"You hear a voice behind you" [Gilear!Fabian] "say: 'It's all going to be all right... I know it seems very far off, but there is a way for you to be happy.'"
And of course, the yogurt, the symbol of mediocrity, is here too. "The yogurt curdles in your stomach." Curdles. The same word used to describe the magic coming out of Fig. The yogurt that Fig gives to Fabian while he's having his breakdown in Leviathan is lemon flavored too.
Of course the primary conflict seen in the trailer is about difficulty graduating. That's a normal problem. That's a normal concern for normal people.
The fear of mediocrity can be strong. Especially for people as exceptional as the Bad Kids. But the fear that you'd be happier taking the easier path, that the road less traveled isn't inherently better, that your hardship is for nothing... that's even worse.
The reasonable thing for Fig to be releasing would be the red growth seen on the minis in the trailer. But no. She releases something lemony and creamy and sour and curdled.