I think there's a good chance that Nintendo will go for this in a little while when they really start needing additional franchises. After Pikmin, Kid Icarus, Animal Crossing, Kirby, FZero and StarFox come out, they may look to this for some additional support. On the other hand, looking at that lists reminds me of how much Nintendo has in the vault, so they may not need to resort to Luigi...who knows?
My Games of 2011:
The Legend of Zelda: Skyward Sword
Elder Scrolls V: Skyrim
Super Mario 3D Land
Uncharted 3: Drake's Deception