Vanguard: Microsoft Press Release

Microsoft has a more in depth press release up on their site. A couple of their statements have been a little misleading, such as 'offline gameplay' for vendors.
Here's the snippet:

Player owned houses, vendors and workshops. Players won't stop at just exploring the world of "Vanguard," they will also create buildings in which to create, store, and house their belongings. Homes can be built and decorated, while workshops are used by artisans to craft valuable items. Player run vendors can sell and buy goods, providing for both online and offline gameplay.

I don't mistrust Sigil, but I was taken off guard with that statement.
You can read the full thing here.