Luigi News
More Mario and Luigi Dream Team gameplay and basic plot was released. Release date is August 11th.
More news on Mario Golf: World Tour, mainly how the internet will come into play.
New Mario Party for the 3DS Announced! Game focuses on how each board is unique from the other. Returns to the original format. Also utilizes AR Cards. Online multiplayer seems to be a possibility.
More footage of New Super Luigi Bros U!
Related Mario News
More news on Donkey Kong Country Returns 3D, an extra world has been added to play after beating the main game.
Mario vs Donkey Kong game coming out May 9th.
A new Yoshi's Island 3DS sequel revealed!
Legend of Zelda News
Link to the Past is getting a 3DS Sequel, which will be out this Holiday Season.
Oracle of Ages and Oracle of Seasons are going to be released to 3DS eShop on May 30th.
Nintendo News
Animal Crossing: New Leaf will be bundled up with a special 3DS XL! It also received a new trailer.
Pikmin 3 new Pikmin officially revealed, the Winged Pikmin.
Wii U System Update is coming out next week.
Virtual Console for the Wii U will be released the following day of the Update.
EARTHBOUND GETTING WORLDWIDE VIRTUAL CONSOLE RELEASE BY THE END OF THIS YEAR.
Third-Party News
Professor Layton and the Azran Legacy to be released in 2014.
Bravely Default is to be localized and published by Nintendo.
(Please mention anything I could have missed).