Season 4 you mean? But that would be weird if the 4 labeled as the people responsible for the God U killings suddenly be out again unless Ashley and co. basically reveals they were the good guys which might be the case but all social media and recordings were jammed during the fight right? They showed how no one could get a signal out.I think you have to send these four to do their own thing. Set them up as a "west coast seven" or "Atlanta/Southern Seven" with a couple new characters. Have them in reality trying to find Sam and Cate because homelander is protecting them.
However, I think the next time we see any of these characters is we see Cate on Season 5 of the boys
West coast Avengers style or West coast God U would shake things up, of course Sam and Cate might get involved.