The Newest announcements for Hatsune Miku: Project Diva X have revealed the finalized box art for the PS Vita version of the game, as well as the Aime game card (illustrated by KEI!) included as a preorder bonus with the Japanese version of the game. This card can be used with any Aime arcade game.
SEGA has also uploaded the official teaser commercial to their YouTube channel, which debuted on Japanese TV back on November 30th and can be seen on SEGAs Project Diva Blog. The game is scheduled to release in Japan for the PlayStation Vita on March 24th, with the PlayStation 4 version due sometime in Fall 2016. Western release plans are yet to be announced.