Simon and Schuster (Viz’s distributor) lists two new novels (presumably from the Haikasoru line): Mirror Sword and Shadow Prince (Noriko Ogiwara) and Good Luck, Yukikaze (Chohei Kambayashi). Good Luck, Yukikaze is definitely the sequel to Yukikaze (published this past January under the Haikasoru imprint) and Mirror Sword and Shadow Prince appears to be a sequel to Dragon Sword and Wind Child (being reprinted by Viz in paperback November 16). Both novels ship May 17, 2011.
There is no summary for Good Luck, Yukikaze, but the following summary is listed for Mirror Sword and Shadow Prince:
“Oguna is an orphan with a secret even he doesn’t know—he’s a prince and heir to a terrible power. His best friend Toko is a member of the Tachibana clan and a potential high priestess able to tame that power…or destroy it.”
I’m all for more Noriko Ogiwara! Dragon Sword and Wind Child is an amazing book! And I haven’t gotten to Yukikaze yet, but getting the sequel published in English as well is awesome!