Looks like for Blizzcon 2015 Windows 10 is teaming up with Blizzard as a sponsor and for the first time ever for fans not attending the event can see the opening ceremony streaming live on their Xbox One.
For the first time ever, fans not attending BlizzCon 2015 in person can watch the Opening Ceremony streaming LIVE on their Xbox One via the Xbox Live Events interactive (XLEi) app starting Friday, November 6. (Details coming soon.)
From majornelson.com
Normally you’d need the Virtual Ticket to view this event but its unclear if the xbox one users will still need this or not. Also Xbox’s Larry “Major Nelson” Hryb is giving away five tickets to the event as well.