Planned for New Year’s Eve, there’s a tie-in to Himuro no Tenchi Fate/school life, the manga by Eiichirou Mashin, and what looks like an adaptation of its fan-submition contest.
Then there’s the more serious Moonlight/Lostroom with a Kinoko Nasu story from Fate/Grand Order: First Order’s Hitoshi Nanba and Takuro Tsukada at Lay-Duce.
That’s from Ufotable with Fate/stay night animator Masato Nagamori on character designs.