Holy shit I did a thing. Wouldja lookit that. Only took all night.
This is my personal vision of Dib at 16, as he'll appear in the (eventual) sequel to New Kid. Yes, there will be a sequel, even though the current story is nowhere near done! (Seriously it's like half-written already. :P)
Dib grew into that huge head of his! So funny Also cranky Dib is cranky; you'll find out why when the (still unnamed) sequel comes out.
Also I've been really careful with my height scale here; he's on scale with the picture of 12-year-old Xet. I'm nothing if not thorough, I guess.
Zim from the same time period to come later. Possibly Gaz. Also probably at least Dib and Xet at 14. Maybe a Zim for scale. Gaz if I'm crazy bored. (I've never properly drawn Gaz... I guess I should do that.)
16-year-old Xet has been drawn several times over now, but those won't be posted until until the proper time in the sequel. No (important) spoilers here!