I think June Egbert will be introduced through an imaginary sequence similar to problem sleuth and the alter egos. It would be a cool callback, and makes sense in the story as a way to introduce before John/June realizes they are trans.
i reaaaally want to see another helltier VN with june, since she and vriska are like, mirror-world clones of each other but also a problem sleuth sequence like that sounds like fun :)
We're slinging doppelgangers in a house of mirrors!
At prices you won't believe, because they don't exist!