Check out the list of first party Nintendo games hitting the Wii this year and you won't find much. In an interview with IGN Reggie lays the blame in a very specific place:

"We have had to effectively prepare for the launch of 3DS, as well as effectively prepare for the launch of Pokemon Black and Pokemon White," he says to IGN. "Candidly, we've pushed out some Wii launches so we can focus on our handheld business. Because for us, we're already juggling two big balls; you know, to add a third would be a little bit challenging or a fourth or a fifth.
"So there's a reason why [gamers] haven't gotten any information about Wii, at least from a first-party perspective. We're waiting to space things out and let Pokemon Black and White and let Nintendo 3DS live and breathe out there. But there's content coming and we'll be sharing more certainly in the weeks ahead."
Vaguely he adds, "We'll be bringing out some content before E3 and then certainly at E3 we'll be sharing more news."
Sounds legit. I mean, Nintendo is a pretty small company who wouldn't want to keep a lot on their plate at once. And it's not like they have a history of abandoning consoles immediately after a new one launches.

About The Legend of Zelda's 15th anniversary, Reggie wouldn't add detail to Iwata's claim that their plans would "excite" fans during GDC.  "All I can tell you is, it'll be different from what we did for Mario," he said. "But it will also be just as special."

Sounds like it might not be awful and a huge insult to the fans who've stuck with the franchise for the last two and a half decades, as the Mario anniversary was. I'm not getting my hopes up.