It appears as if the Mega Man Game Boy collection (referred to as Rockman World overseas) will be complete next week in Japan, as Mega Man V is hitting their 3DS Virtual Console. Celebrated by fans, Mega Man V is often considered to be one of the most unique, and best games in the franchise, eschewing many established tropes in favor of an item shop, and a lack of Robot Masters.
As far as we know, the US is still slated to receive the entire Mega Man Game Boy lineup, in addition to the Game Boy Color games Xtreme and Xtreme 2.
Rockman World 5 Rockets onto 3DS in Japan Next Week [Mega Man Network]
via destructoid http://www.destructoid.com/mega-man-v-hits-the-japanese-3ds-eshop-next-week-264548.phtml