Let's also not forget that nothing prevents them from releasing a new Zelda or Mario game this generation.
Look at Sony last gen: 3 Sly Coopers, 4 or 5 Jak and Daxters , 3 or 4 Ratchet and Clanks, 4 Socoms, etc...Why should we assume Nintendo is only allowed 1 title per franchise per generation?
The rEVOLution is not being televised