Yeah, cynic in me sees just another brank-milking here, New Vegas is attaining a cult-like "best game ever" vibe, the same FO1 and 2 had, that Beth milked when preparing for FO3.
Sawyer would definetly be on it if it ends up happening for sure. He has a lot of pull on Obsidian now I don't think he would remove himself from an opportunity like that.