A Fool's Day in World of Warcraft
Unfortunately it seems that the World of Warcraft website itself fell behind the others. Apart from a short parody post of the PTR notes on the forums not much else was offered for today. Considering that particular site was the leader of the April Fool's Day jokes in the past it's a bit sad seeing they didn't have an offering. Then again, it's not as if it's a required thing either.
So instead, Wowhead has stepped up to fill in the gap with their own parody video of a new event on the Broken Shore. Click the video to play the "You are not PEEP-pared" scenario.
Video Credit: Courtesy of http://www.wowhead.com/
There's also mention of a Nomi Raid Boss on their website that I'm sure characters with the cooking profession wouldn't mind having in-game for real.