I've always wanted to do a crossover so bad.. Calling it Town of Park/South Salem, whichever is more appealing. I even did a crappy drawing of him as a New Kid.
Town of Park is where Kid is his true adult age of 22, it could be taken as him coming into South Park or one of the others finding their way into Salem. He is the quiet closed up type but can be seen at times at a bar or store, he hasn't spoken to the other adults much either.
South Salem, Kid is actually a New Kid who moves in. He is just as quiet closed up as his adult self who does take interest in fire, often times seen being dirty with sute and having light burn scars. He is in the fourth grade but is a year younger than most of the kids, not often picked to answer questions do to his quiet voice. He is rather smart, his origins is unknown but he seems to have a Russian accent.
-Mun N