2017 April Fools

A list of Blizzard's 2017 April Fools.
==Official==
===7.8.0 Patch Notes===
:[Note to community team: when you write the intro paragraph for this, include some flavor text about Mecha-Arthas, and maybe do some foreshadowing about an upcoming conflict with Vol'jin Prime.]
===Classic Battle.net® Theme===
:Battle.net Never Dies! 
:Does your heart long to relive the bygone days of Battle.net? Blizzard Entertainment is proud to introduce the exclusive Classic Battle.net theme!
::Official link, article since removed after April 1st. - Copy of article found at MMO-Champion
===Hearthstone - Mankrik's Wife reveal===
:Hello children! Another Doyle Discovery! The Professor has datamined a new card that was missed from yesterday's reveal!
===Starcraft - Breaking News: StarCraft II Instability (Co-op Mutation)===
:StarCraft 2 Co-op Mutation servers have been the target of a sustained attack of substantial magnitude.
===Starcraft - Overlord Announcer coming to StarCraft II!===
==Fans==
===Wowhead - Build 24117 PTR Preview===
:We've started hearing about upcoming PTR changes and today we've found some new content on PTR realms: the You Are Not Peep-Pared Legion Assault which rewards A Tiny Guest, and a new Nomi Micro-Holiday Origins of the Firelord.
===Deadly Boss Mods===
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