@Sir Yasheen Alright, impossible is too strong of a world. I'll just say highly unlikely.
First is the issue that Shamrock cannot be humiliated like a midtier arc villain or everyone I mentioned suffers hard.
Then there's the issue of who would be his boss big bad. Some Gorosei might come down or something but we already know if one goes, they all do, which would make the escape from Eggheadd also into a circus if they were just going to fight the Gorosei plus Shamrock half an arc later.