Falcom set up a crossover with Trails in the Sky and the online role playing game Grace of Fairsky. While tweeting about the collaboration, Falcom said that it looks like Trails of Blue, which was released for PSP in 2011.
Falcom then tweeted that reminds them "that blue" will be announced soon. Speculation from Japanese message boards is Falcom is teasing a port or a remake of The Legend of Heroes: Trails of Blue. Kadokawa Games partnered with Falcom to bring The Legend of Heroes: Trails of Zero to PlayStation Vita. Trails of Zero Evolution added a new scenario, a couple of mini-games designed with the Vita’s hardware in mind, and unfortunately a rash of bugs.