For the items released in September, first up is the Kamen Rider Build's transformation device, the Henshin Belt DX Build Driver and will include the Rabbit and Tank Full Bottles. Set the Full Bottles into the belt and pull trigger! This activates a gear turning gimmick, activating the lights and transformation sounds, transforming into Kamen Rider Build Rabbit Tank Form! Pulling the lever a second time activates your finisher!
Next is the DX Full Bottle Holder, which can store 3 Full Bottles. This and the DX belt is also available as a single set, the DX Build Driver & Full Bottle Holder Set. The comes with all items related to both items. Kamen Rider Build's possible primary weapon is the Kaiten Kenjuu (Rotating Sword Gun) DX DrillCrusher.
The next Full Bottle Set is the DX NinNinComic Full Bottle Set and it comes with the NinNin and Comic Full Bottles. Inserting it to the belt transforms Build into his NinNinComic Form. He is equipped with the Ninjutsu Hatsudou 4-Coma NinpouGatana (Ninja Arts Invoking 4-Panel Comic Ninja Technique Sword). Last item listed to be released for September is the RHS-05 KnightRogue, a sofubi figure.
For the stuff available in October, we have the RHS-BloodStark (sofubi), the DX RocketPanda Full Bottle Set, which comes with the Rocket and Panda Full Bottles. Inserting these will transform Build to his RocketPanda Form. He is likely to be equipped with the Henshin Kemurijuu (Transformation Smoke Gun) DX TranSteamGun.
Other items released in October are: Valve Kaiten (Valve Rotation) DX SteamBlade, RHS-08 Kamen Rider Build FireHedgehog Form (sofubi), and RHS-09 Kamen Rider Build LionCleaner Form (sofubi).
Next is the DX ClothesDragon and the HippareSouKen (Hit Parade Play-the-music Sword) DX BeatCloser, which you can also purchase as a single set thanks to the DX ClothesDragon and Beat Closer Set. Most likely these items are related to the show's second Rider, Kamen Rider Clothes and form Kamen Rider Build's other form, the Build KeyDragon. Other items released in this month that I can't organize to a Rider are: the DX PandraPanel and the Bike Henshin DX BuildPhone.
More Full Bottle Sets will also be available this November, first is the DX KaizokuRessha (PirateTrain) Full Bottle Set, which comes with the Kaizoku and Ressha Full Bottles. Inserting these items will transform Build into his KaizokuRessha Form. He is equipped with the Shuppatsu Shuukou (All Aboard!) DX Kaizokuhashaa.
Next is the DX OctopusLight Full Bottle Set, which comes with the Octopus and Light Full Bottles. Inserting these items will transform Build into his OctopusLight Form. Lastly, we have the DX RabbitTank Sparkling, and is related to his Kamen Rider Build RabbitTank Sparkling Form.
[Source: Dukemon of Rangerboard]