We might see this kind of scenario next year...
We might be fan wanking a lot next year. According to some user from 4chan who attended the pre-screening for Movie Wars Core, at the end of the film, a preview for the possible 40th Anniversary film which shows Rider 1 and Den-O Sword Form posing together.
Called, Kamen Rider x Chou Den-O: Riders of the DenLiner, is supposed to be the first part of the 40th Anniversay. It stars Hiroshi Fujioka (Takeshi Hongo/Rider 1) and he is fighting a so-called, Kaiser Shocker as he uses the DenLiner to gather up "all the greatest Kamen Riders of all time." It is said that this will be released this April 2011.
What makes this rumor solid it is said that Toei registered a domain called all-rider.jp last December 9. Also, Hiro Mizushima (Souji Tendou/Kamen Rider Kabuto) mentioned in his Twitter that he did some filming. It is not sure if it is related to this one.
What makes Hiro's possible appearance is the appearance of the alleged casts sheet which list these people:
Kamen Rider x Chou Den-O: Denliner no Rider
Opens at: April 2011
Length: 100min
Cast
Takeshi Hongo: Hiroshi Fujioka
Kaizelshocker's Great Leader: Takeshi Kaga
Yuto Sakurai: Yuichi Nakamura
Soji Tendo/Kamen Rider Kabuto: Hiro Mizushima
Shiro Kazami/Kamen Rider V3: Hiroshi Miyauchi
Shoichi Tsugami/Kamen Rider Agito: Toshiki Kashuu
Keisuke Jin/Kamen Rider X: Ryo Hayami
Kotaro Minami/Kamen Rider Black: Tetsuo Kurata
Otoya Kurenai/Kamen Rider Kiva IV: Kouhei Takeda
Sou Yaguruma/Kamen Rider Kick Hopper: Hidenori Tokyuama
Takeshi Asakura/Kamen Rider Ouja: Takashi Hagino
Kaizelshocker's Great Leader: Takeshi Kaga
Kohana: Tamaki Matsumoto
Naomi: Rina Akiyama
Owner: Kenjiro Ishimaru
According to a post that followed the image, it is said that Takeru Satoh (Ryotaro Nogami/Kamen Rider Den-O) was not happy when Amuse (his agency) would not let him participate for this film because of his schedule to film a drama which will cause conflict with filming this Den-O film!
What makes this list a little doubtful is that Kaiser Shocker's Great Leader is listed twice and Kouhei Takeda is supposed to play Wataru's son, Masao who is Kiva IV but he is listed as his grandfather, Otoya! Plus, Hiroshi Fujioka's comma in his name was missing. Also, this list is only posted at /m/ and its authenticity is still in doubt due to these facts listed.
What makes this list a little doubtful is that Kaiser Shocker's Great Leader is listed twice and Kouhei Takeda is supposed to play Wataru's son, Masao who is Kiva IV but he is listed as his grandfather, Otoya! Plus, Hiroshi Fujioka's comma in his name was missing. Also, this list is only posted at /m/ and its authenticity is still in doubt due to these facts listed.
Take these rumors first as a grain of salt. Let's just wait for official confirmation coming from Toei or any related and official source.