How soon? Not sure, but the first batch the episode with Edie is coming “soon”. The first downloadble episode came out in Japan four months after the game released. If Sega sticks to the same schedule we’re talking February/March-ish “soon”.
This message was tucked away in a Sega Blog post where they also announced a Valkyria Chronicles Cosplay at NYC Comic Con. If you dress up as one of Gallia’s finest or a member of the Imperial Alliance and show up at Sega’s booth you’ll get a limited edition Valkyria Chronicles art book. Sega plans to hold books for Friday and Saturday, but it’s still first come first serve. As of now Sega looks to have the strongest gaming presence at the event with games like MadWorld, the Conduit, Sonic and the Black Knight, and House of the Dead: Overkill on display.