Assassin's Creed Brotherhood PC Date Correction & Add-on News

We have a corrected North American release date of March 22 for the Windows edition of Assassin's Creed Brotherhood, which makes more sense than the March 17 release date mentioned earlier this week in the Ubisoft Forums, since games are typically released on Tuesdays in this region. We learned this after receiving an announcement from Ubisoft for The Da Vinci Disappearance, a new add-on planned for release next month for the action/stealth sequel. The announcement only mentions the Xbox 360 and PlayStation 3, so we contacted Ubisoft to ask if there are plans for a PC edition of this add-on. In reply we got a very indirect answer saying that more information on the PC version will be released next week, referring to the Windows edition of full game. When we tried to pin down an answer about the add-on, we were told more specifically that next week we will learn more about the PC version, "including specs, content, etc." We don't know any more than that, so there are two ways to read it: One is that they are not discussing a PC add-on right now because the PC edition isn't out yet, but the other is the possibility that the PC edition will actually include the add-on from the get-go, which would explain the reference to learning more about the "content" it will include. We'll find out next week.