According to Vulture:
Netflix has announced that fifteen new episodes of Arrested Development will premiere at 12:01 a.m. PT on Sunday, May 26. That's one more episode than the originally promised fourteen, and yes, they will all be made available at once. You may as well call off those Memorial Day weekend plans because now you're busy. Said series creator-executive producer Mitch Hurwitz in a statement, “My simple wish for the show is coming true: that it be broadcast every second around the clock to every television, computer or mobile device in existence.”
I don't know about you, but I won't be canceling any Memorial Day plans for a goddamn television show, even if it is the Bluths, but I will watch it soon there after. And then I will leave unfulfilled because 15 eps and even a movie after them, aren't enough if you ask me.