Looks like

Fire Emblem: Awakening
LEGO City: Undercover – The Chase Begins
Animal Crossing: New Leaf (June 2013)
Luigi’s Mansion: Dark Moon

will be shown in the american Nintendo Direct today for sure, it seems there will be more not yet announced games too

Also shown were

Mario & Luigi: Dream Team (3DS)

Mario Golf World Tour (3DS)

New Mario Bros WiiU DLC about Luigi

Donkey Kong Returns (3DS)