The ever expanding Fate series continues to grow as Fate/Extella and Fate/Extella Link has just been announced that it will be ported to mobile!
The trailer seemed to be part of the livestream of the 10th Year Anniversary of the Fate/EXTRA
To those who are unfamiliar with these two titles, Fate/Extella was originally a console game which takes part in the Fate/EXTRA and Fate/EXTRA CCC world where it takes place after the events of the Moon Holy Grail War, but in a slightly different continuity from the events shown in Fate/EXTRA. Whereas, Fate/Extella Link is a sequel to Fate/Extella.
For the full live stream, you can check it out here!