While those who are well familiar with KEY’s Little Busters visual novel release will not find much new content in this trailer, for those who are not, this is a recently released trailer for the Playstation Vita port of the game published by Prototype and due for release in Japan on the 22nd March. The trailer is generally the games usual opening sequence with some of the games mini-games (Including Baseball and the “Fighting” systems among others) along with the usual visual novel dialogue systems.
It is disappointing to say this but I would only place the chances of an English localization of this title as being very low at the current time.