Kamen Rider × Kamen Rider OOO & Double feat. Skull: Movie War Core

Here's the official poster of Kamen Rider × Kamen Rider OOO & Double feat. Skull: Movie War Core featuring the sequel of Kamen Rider W and the prequel of Kamen Rider OOO.

All I can say is Kamen Rider franchise getting to the next level including crossovers since last year alongside with Super Sentai crossovers, Hope Sentai and Kamen Rider would be crossover just like Decade and Shinkenger on Kamen Rider Decade episode 24 and 25.