It's Showtime Japan held a press conference today, where they formally announced It's Showtime Japan's "Countdown" show schedules, the shows will be split with REBELS Muay Thai events as well as M-1 shows in Japan. The schedule looks as such
July 18 (Mon) REBELS Differ Ariake
August 28 (Sunday) Festival Shinzyuku Huziwara FACE
September 11 (Sun) M-1 Differ Ariake
Oct 23 (Sun) REBELS Differ Ariake
November 13 (Sun) M-1 Differ Ariake
Dec. 23 (Fri.) Huziwara Korakuen Hall Festival
On top of that, two feature bouts for the first event on July 18th have been announced, which is headlined by Giorgio Petrosyan vs. HINATA at 70kgs.
65kg It's Showtime Championship Challenger Bout: Mosab Amrani vs. Chi-Bin Lim.
61kg It's Showtime Rules: Genki Yamamoto vs. Kan Itabashi
We'll have more on It's Showtime Japan as the Countdown-1 event approaches. [source]