This article has been updated for clarity, plus a correction over the timing of a tweet.
During Microsoft's press briefing this week, the firm’s Brad Smith pulled out an envelope with a contract in it.
“I walk around with an envelope that contains the definitive agreement that we sent to Sony two days before Christmas, I am ready to sign it at any time.”
source https://www.gamesindustry.biz/microsoft-activision-blizzard-europe-opinion