User blog comment:B214/Season 3 confirmed!!!!!!/@comment-24910433-20150306235329/@comment-24910433-20150307002644

I saw it on the page for Season 3 on MAL. Take it as you will, considering it doesn't really say what it is or isnt exactly. I'm probably wrong about it being the whole episode but I guess we'll know in a few days.

"Episodes 1 and 2 will be previewed at back-to-back screenings at United Cinemas Toyosu in Tokyo on March 15th 2015."