My thoughts:
-Rosalina in 3D World is cool but the fact that she became playable in a Mario canon game that isn't a remake before Wario or Waluigi makes we want to go sit in a dark corner somewhere and think about the meaning of existence. On the upside, 3D World seems to have a nice amount of content and I wouldn't be surprised if it ended up getting DLC.
-I really applaude Nintendo for actually caring about Pikmin 3 and giving it a surprising amount of DLC despite coming out 4 months ago.
-Nintendo's been a really big supporter for indie developers this gen and I'm glad the trend is continuing.
-Zelda's cool, yo.
-Linking 3DS and WiiU accounts? FINALLY! Christ... the fact that they were separate for the longest time downright annoyed me to no end.
On a different note, this bit of news is particularly cool and, who knows, maybe some Smash announcements might end up getting tied to it:
http://gonintendo.com/?mode=viewstory&id=216904