We have reported several days ago that Kamen Rider Den-O will again have new movies, that will be entitled Kamen Rider Chou Den-O Trilogy Not just one but three. And now, we got the movie summaries for each one from dukemon22:

EPISODE RED:
Revolves around Yuuto and Airi. Yuuto must connect a rail that becomes interrupted in the future. This can be seen as "Zeronos' Final Battle."

EPISODE BLUE:
Revolves around Kotaro, and deals with his family issues. Kotaro's father (and Ryotaro's son) is introduced, and Ryotaro and Kotaro become split on a decision they have to make. Red and Blue together are to be viewed as sequels to the television storyline.

EPISODE YELLOW:
An Extra-Chapter of sorts. To be viewed as a true Cho Den-O sequel. The Den-O characters must team up with Diend in an effort to get Ryotaro and Aoa back to where they came from. The "Rider who misinterprets time" appears. When the great battle begins, the other riders from Decade and from Double appear to help.