The application period for the pre-advance sales ticket lottery has started, goes till Dec. 2nd - the flyer for Hatsu 2020:
Advance ticket sales start on Dec.7th
The former Yoshikaze, now Nakamura oyakata, flogs Lucky Bags at the Oh!! Sumo Market in the main passageway through Ryogoku Station. Each bag contains some sumo souvenirs and some special goods not sold at the souvenir stands.