Check it out, the new rider for 2011, Kamen Rider OOO.
It'll be an animal motif, and he'll use Medals to change form.
Basic form will be called Tri-Form, and 3 other forms called Sky Form, Field Form, and Insect Form.
He'll use the Medalialsword with the Medals to change form.
KR OOO will also have gadgets, called Medal Familia, consisting of Hawk, Lion, and Kuwagata helper animals that can grow big and help him in combat.
Pic of the rumored actors and theme songs for next years KR.
It looks like Yumi Sugimoto in one of the pix, but I'm only guessing.
The OP wil be "Generation" sung by HYDE, and the ED is "Kamen Road" sung by Ami Suzuki.