I was thinking more in terms of arenas. Every arena show I've attended in Japan has been entirely seated. The 3/4000 capacity venues (e.g. Zepp) were a mix, sometimes 1F standing, sometimes all seating. The one dome show I went to (Momoiro Clover Z) was all seating. I typically look at resellers now because even when getting tickets through fanclubs, I've been closer to the back
Determined to get a ticket, so really hope tickets end up being resold/more dates are added!