Lets see…Kick Ass is the primary universe. Superior, Huck, Nemesis and MPH all happen in that universe. Jupiters Legacy is a movie series in that universe. Wanted is the unknown criminal masterminds controlling that world. Kingsman are a secret society within that world. Empress is the origin of that Earth, set in the distant past. The Chrononauts are experimenting in this same world. Starlight and Duke are in that same space, unknown to everyone. The Supercrooks are a gang in that world too I think, and Bonnie from Reborn was in the same Earth as Kick Ass. American Jesus is this worlds President. The only title I think that’s not directly in this world is Jupiters.
I don’t think there’s many plans for crossovers of these titles to be honest. At one point there was a bit of a discussion about a Millarworld event, but Netflix are in control now and they’ll separate things in the most part. It doesn’t really help to have the Marvel or DC interconnected universes I think. Not now that the novelty has worn off. It’s mostly just fanboy service really.