The first game announced under the Sega and Aiming partnership was Towa no Tsurugi. It’s also a MMO style game mixed with shmup elements. Towa no Tsurugi looks kind of like The Red Star or Mirror War from L&K.
Towa no Tsurugi was supposed to come out in March, but the game was delayed to further improve the quality of the title. No Western release has been officially announced, but the Sega and Aiming partnership was announced as a worldwide deal.