Fate / Grand Order for Android and iOS is scheduled to be released this Winter! It also seems like that some people were able to record the teaser trailer below from a "live" event.
Don't expect to see any gameplay trailer in this teaser! In the end, fans are teased with the text "Fate Online Project Reboot" for iOS and Android.
1920x1080 Wallpaper (='-')/")
Game Site: Link