I doubt it, at least for now. GH is not doing so great as Pad and Chrono Maga are pretty the last two titles GH has running. I don't think Chrono Magia took off the way they want to; meaning that leave them with Pad. (Doing a quick google research seems to agree with that statement: https://www.reddit.com/r/chronomagia/comments/8jijhk/is_this_game_popular_at_all_in_japan/) That said, overall US community presence of Pad seems to be declining... at least from the thing I've been using: - Pad Forum isn't as active as it used to be. - Pad Herder, Pad Guide, PadX, ... are either extinct or about to be.. - Discord pad server I'm on lost of a lot of momentum... I still think Pad is going to be running for another 2 years at least; but if the decline continue, I doubt it will go much beyond that mark.
It's still a good time to switch to an US account as you get at least 100 stones (I don't remember when the first 100 expires)