Arguably, the Wii U is in a worse state now than the 3DS was at this same point in it's lifecycle. Perhaps Nintendo could announce a price drop some time in September or October. There would then be an even starker contrast between the price point of Wii U and the likely cost of Sony and Microsoft's new consoles. I mean, retailers have been cutting the price of the Wii U pretty much since it launched and it appears that US retailers are now following suit. I'd feel far happier about not having any significant third party support if I could buy the Wii U at a cheaper price point and think of it as my Nintendo platform.
From my own perspective, Nintendo need to either release a game that I can't life without (think Metroid Prime 4, Super Mario Galaxy 3, or a new AAA IP from Miyamoto) or they need to drop the price.