From previous months' experience, I'm going to push the release dates published two days earlier, as almost all new items from Tamashii Nation were released two days earlier than the dates given. ^^
15th: SDX Masked Commander - 6,090 Yen (inclusive of tax).
15th: Robot Damashii [Side MS] Gundam F91 - 3,150 Yen (inclusive of tax).
22nd: R-Style Tengen Toppa Gurren Lagann - 735 Yen each (inclusive of tax).
22nd: Robot Damashii [Side LFO] Spearhead (Ray's Unit) - 3,990 Yen (inclusive of tax).
22nd: Robot Damashii [Side EVA] Eva Unit 1 - 3,675 Yen (inclusive of tax).
22nd: S.H. Figuarts Kamen Rider Gills - 3,150 Yen (inclusive of tax).
22nd: S.H. Figuarts Kamen Rider W Double Heat Set - 5,775 Yen (inclusive of tax).
22nd: S.H. Figuarts Kamen Rider W Double Cyclone Set - 5,775 Yen (inclusive of tax).
22nd: Soul of Chogokin GX-53 Daitarn 3 - 20,790 Yen (inclusive of tax).
Information is from Tamashii Web. Images are from various previous posting.