Capcom seeks to crowdsource challenge levels from all six games.
http://www.nintendoworldreport.com/news/41151/mega-man-legacy-collection-adds-amiibo-support
The Mega Man Legacy Collection is coming later to the 3DS, but it will have support for the Mega Man Amiibo.
Capcom announced on the Capcom Unity blog that the Amiibo would unlock ten special challenge stages, which will be created by fans. The contest asks for timestamps from Mega Man playthroughs in order to create the special stages, which can cross multiple games in the collection.
No further release date was given for the title, which released on PS4 and Xbox One late last month.