^ H!P or H!P OG acts have appeared at most of the Japan Expos in Paris since 2010, so yeah, I'd say you have a decent chance. At the very least, it wouldn't hurt to keep an eye on their guest announcements. And even if H!P doesn't show up, the odds are still very good that some other big-name idol group will.
Whereas my hope of Yaguchi coming to San Francisco is probably nothing more than a pipe dream….
Shoujo Q wrote:I'm wondering what kind of fanbase Mari has outside Japan?
I can't imagine that it's very large. What kind of fanbase does she even have
inside Japan nowadays?