Any ideas for surprise Sprites coming up later in the season?

I definitely think they're trying to indicate that the door is open for collab Sprites, so what are they going to do with this? Maybe Superman Sprite will return to tie in with Supergirl? Beyond that maybe we get more like a Spider-Man Sprite. It would actually be pretty cool for The Guardian to have both a Marvel and DC style in a way plus they could do a second comic book Sprite.