The staff returning to the series are: Yuji Kobayashi (head writer), Takashi Kurahashi (art director), and Yasuharu Takanashi (music). Toei Animation will once again animate the series. The cast of the Sailor Moon Crystal anime will once again reprise their roles for the third season.
Based on the Death Busters arc of the manga, the arc features the introduction of the Outer Senshi, namely Sailor Uranus, Sailor Neptune, and Sailor Saturn, will join Sailor Moon and the others. Lastly, a Niconico livestream event will announce the cast for the Outer Senshi on January 27, which is also the birthday of Haruka Tenou aka Sailor Uranus.
[Source: Anime News Network]