When the Nintendo 3DS's Nintendo eShop launched a playable demo of Mega Man Legends 3 was supposed to accompany it but was delayed for unknown reasons. Turns out we know why now --- the game has officially been canceled.
Mega Man Legends 3 was supposed to be the follow-up to the cliffhanger ending found in Mega Man Legends 2 back on the PlayStation and was one of the first games announced for the new handheld back in 2010.
An English version of the announcement from Capcom states that they will not be reviving the project and canceled it because it didn't meet their standards for being officially green-lit as a project.
Because of the cancellation the eShop demo will not be released.