Blizzard's April Fool's Joke seems to be a little joke for us -- the King's Quest fans!
What do you get when you cross King's Quest and Starcraft? Queen's Quest!
This one, especially, is my favorite screenshot.

I would play that to be honest. LOL. Well, this is actually BAD news that they're using their IP.
Although, it's debatable whether a parody of your own work is using the IP of said original work you own.
Whatever, I still wish they made it, lol.