The official website announced today that this performance will be held as planned for those who already have tickets. However, those with tickets who would like a refund may request one. There will be no further advance or day-of ticket sales. For more details, check here.
Thankfully, the site also announced that there will be a live stream and archive of the event, hosted by Pia Live Stream and eplus Streaming+ services.
Tickets are 3,000 yen and are available via lottery on each of the artists’ Fan Club sites. Please check the website for details.