With the launch of Dissidia in Japan at the tail end of last year, Dissidia will finally be released in North America this Summer. Square Enix has given there fans a trailer to tide them over for the time being. This trailer is very similar to the Japanese version, but in English. It describes a bit about the story. Square Enix has also announced that a simultaneous Western release for Dissidia may be a possibility.
Here is the trailer:
Source: FinalFantasyUnion
Here is the trailer:
Source: FinalFantasyUnion