Information about PanSIG 2020 will be coming soon. In the meantime, this page from last year should give you some idea of what to expect.
The PanSIG 2019 Conference will be held at Konan University, Nishinomiya Campus (CUBE) in Nishinomiya, Hyogo Prefecture, on May 18-19, 2019. Attendees to PanSIG 2019 will be best served by the Sannomiya area of Kobe and the Umeda Area of Osaka, which are both 15 minute express-train rides from Nishinomiya-Kitaguchi station. See a Google map to the venue, or see the university's own access guide on their site (in Japanese).
When you exit your train at Hankyu Nishinomiya-Kitaguchi station, head for the East exit:
After you exit the turnstiles, head to your right into the shopping plaza:
Walk all the way through the shopping plaza and then along the elevated walkway all the way to the end. There will be a stair case to go down and you will see the Nishinomiya CUBE campus: