Nuvendil on 02 January 2015
Hopefully it's a team up of Bethesda Game Studios and Obsidian. Obsidian would help with a lot of writing and whatnot, but they *need* help with their open world construction. Fallout New Vegas was great but that world (outside of right around the main roads) was so painfully barren.
However people, don't get excited yet. Remember Survivor2299 and stay calm.
