Hmm, Bandai is promoting The Asterisk War, a Vita game out in Japan next year. But the somewhat useful appearance of English subtitles suggests this all-new title may be coming our way, I mean why bother if they're not doing that? (Wider Asian release possibly?)
The manga has been running three years, with the anime starting last week in Japan. This is the first video game based on it, so there's plenty of potential for a hit - even if the brief look at the action shows some rather generic battling.