Tecmo Koei Europe are teasing a localization that they will announce tomorrow. The publisher posted the image below to their Twitter account, hinting that “hardcore fans might get this hint”. The general consensus appears to be that it’s either Ar noSurge or Ciel noSurge.
If the game in question is Ar noSurge, just which version it is remains to be seen. This week, Japan’s Famitsu magazine announced that Gust are currently in the process of porting the game to Vita under the title Ar noSurge Plus.