That's right, FTV: Legends has been officially announced by WotC. With a release date of August 26, 2011, it gives us all time to ponder just what cards they could possibly have in store for us. With one image spoiled for us to speculate over, only time will tell what it will actually end up being.
Announcement Link
My speculation for spoiled/released art work:
Teferi, the Mage of Zhalfir