Eh, for your tastes maybe. I already bought Infinite -- preordered on Steam -- but I'm playing Luigi's and HarmoKnight first. Luigi has five mansions instead of one this time around, plus new tactical tricks like the strobe, and exploratory devices like the dark-light. Huge variety, and Four Swords-style local/online multiplayer. Early reports indicate the game is fantastic, with a huge campaign and tons of secrets. Can't wait!No I'm saying the only thing worth even the tiniest amount of attention that week is bioshock.
And HarmoKnight is simply incredible. Compulsively playable, endlessly addictive. I think Nintendo realized this in advance, hence them setting the demo limit at 10 uses instead of the usual 30. They know people will get addicted and want to buy it once the demo runs out, and they're right, if the GAF thread is any indication.
Infinite will be a nice way to round things out. It's still overwhelming for me, having them all come out the same week, even if I know the order I'll play them.