If you visit clubpenguin.com on a mobile device such as a phone or tablet, you will see that at the top of the page there is a mention of Frozen. The text says “experience the magic of Disney’s Frozen in Club Penguin April 23 – May 20.” That’s quite a long time period, assuming it’s not a typo…although I’m not sure how they would make a typo like that.
Details about the Frozen Fever event are currently unknown, but I’m sure we will hear more news about Frozen from Club Penguin in the near future.
UPDATE: It turns out the party will be two weeks on the computer and just under a month long on mobile. Wow. o_O
— Chilly4 (@Chilly573) April 2, 2015