The game was previously slated as a 'launch window' title across the US, but that period ends on March 31st - which is just eleven days into Spring. Unless it is released between the 20th and the 31st, it's going to miss the window.
Nothing was mentioned about the European release date, sadly.
Pikmin 3 was shown in demo form at this year's Eurogamer Expo in the United Kingdom, but for those of you who couldn't make it, we've included the trailer shown at E3 this year. That will have to keep you occupied for now, unfortunately.