Double's Second Rider Revealed?!

Rumored picture of the secondary Kamen Rider in Kamen Rider W! Dude`s name is still unconfirmed but he is dubbed Kamen Rider Skull and is said to be appear in Kamen Rider Double/Decade Movie this December!

Maybe this is what happened if you put only JOKER Gaia memory in the Double Driver OR maybe it's a version of the Double Driver that only requires one Gaia Memory OR could it be Akiko`s father?? o.O