The new film, Dragon Quest: Your Story, looks to be an adaptation of Dragon Quest V which was released for Super Famicom back in 1992 in Japan. It didn’t receive a western release until it was remade for Nintendo DS in 2009.
One thing of note from the film’s trailer is its art style. The animation and characters in Dragon Quest: Your Story look surprisingly western. This is likely because the movie uses different designs than longtime Dragon Quest character and monster designer Akira Toriyama’s.
At this time there isn’t any indication if the film will see a major western release; however, the film will probably get a subtitled release for Blu-Ray and digital release at some point int he future. For a first look check out the trailer below.