Bethesda is present at this years E3 (July 11-13) and I guess they will reveal some relevant informations about Fallout 3:
"[UPDATE] Pete Hines, V.P. of Public Relations and Marketing at Bethesda Softworks (makers of the blockbuster RPG Elder Scrolls IV: Oblivion) contacted GameDaily BIZ to let us know that ESA accidentally omitted Bethesda from the exhibitor list, but that Bethesda will indeed be at the Summit."
"[UPDATE] Pete Hines, V.P. of Public Relations and Marketing at Bethesda Softworks (makers of the blockbuster RPG Elder Scrolls IV: Oblivion) contacted GameDaily BIZ to let us know that ESA accidentally omitted Bethesda from the exhibitor list, but that Bethesda will indeed be at the Summit."