While not necessarily announced by Studio Canal themselves, The Tale of the Princess Kaguya has been added to the cinema schedule for March 20th 2015. This is the same source that this forum managed to spot Black Butler and Rurouni Kenshin: Kyoto Inferno heading to cinemas.
Source - Launching Films
Still no news with regards to any upcoming Warner Bros Japanese films like Rurouni Kenshin: The Legend Ends heading to cinemas if you are wondering, they'll probably announce one near the home releases of Black Butler and Kyoto Inferno.

Source - Launching Films
Still no news with regards to any upcoming Warner Bros Japanese films like Rurouni Kenshin: The Legend Ends heading to cinemas if you are wondering, they'll probably announce one near the home releases of Black Butler and Kyoto Inferno.