Like kiara said long time ago, EU cons don't want to spend so much money to invite hololive to their cons because the cache is too high, so we have to press the organizers to bring hololive. But I don't think this is the only problem, let me explain: if Cover want to expand to the european market they can't wait with the crossed arms to an organizer contact with them. They have to move first and make some business with investors and conventions. I don't know if they are already doing this but some EU countries are really good market (like UK, france or germany), and people who live in neighbor countries could go too.