Ultraman Taiga got revealed, info from the thread on /m/
>Inoue Yuki as main protag Kudou Hiroyuki (22). Can transform to either Ultraman Taiga (main), Titas or Fuma. Titas is from U40 (same as Jonias/Joneus), while Fuma is from O-50>Main transformation item is Taiga Spark, a brace-type changer, while the gimmicks this time will be called Ultra Taiga Accessories, consisting of keychains for form changes, rings and bracelets (details TBA, probably for Past Ultra or Kaiju-related collectibles).https://m-78.jp/news/post-5073/