It’s been revealed that Sega recently registered a trademark for “Aoki Kakumei no Valkyria,” which roughly translates to “Valkyria of the Blue Revolution.” [Thanks, Hachima.]
While there’s no telling whether this trademark has anything to do with Valkyria Chronicles, it has been filed for the production of console games, amusement park machines such as pachislot, slot machines, and medal games.