WARNING! FINAL WEEK OF MEGA MAY 2015 IS HERE FOR THE WEEK OF MAY 28, 2015.
Wii U Virtual Console:
Rival Turf (SNES)
$7.99

Mega Man Battle Network 4: Red Sun (GBA)
$7.99

Mega Man Battle Network 4: Blue Moon
$7.99

Mega Man Zero 3 (GBA)
$7.99

Yes, Mega Man Zero 3 was a surprise addition as it wasn't even announced as a part of the Mega May 2015 lineup. I guess Capcom didn't want to end this year's Mega May on a sour note. Especially considering how Mega Man Battle Network 4 is considered to be the black sheep in the Mega Man Battle Network series.
But you know what's interesting about Mega Man Zero 3? That game was intended to be the final game in the Mega Man Zero series. Unfortunately, Capcom ordered them to release a fourth game, but that's a whole different story for when we do see Mega Man Zero 4 released on the Wii U Virtual Console eventually... and believe me, I'm sure it's going to happen.
On top of having those games released for the Wii U Virtual Console... the Playstation Network also got Mega Man 8 released as part of PSone Classics. With this, we pretty much have all 10 of the classic Mega Man games released on modern consoles. With Mega Man 1-7 (and Bass) released on the Wii U Virtual Console, 8 being on the Playstation Network, and Mega Man 9 and 10 being available on Wiiware, Playstation Network, and the Xbox Live Arcade. Unfortunately, we're not likely going to see a Mega Man 11 any time soon. Especially considering Capcom's Mega Massacre that's been going on since 2011.