User blog comment:Mouseinphilly/Crossing Over: What Would You Like To See?/@comment-1518158-20130730225216/@comment-1647442-20130731190042

I could somewhat see P&F with Gravity Falls, and/or P&F with Wander Over Yonder, but I could not see Gravity Falls with Wander Over Yonder, and therefore all three together, due to Wander being... not of this earth. They're not gonna do aliens in Gravity Falls.