Here is a video review of the not yer announced Olympus M.Zuiko Digital ED 100-400mm f/5.0-6.3 IS lens (in French) - the EU price of the lens will be €1,200 including 20% VAT (additional information on the upcoming lens can be found here and here):
More leaked pictures of the Olympus M.Zuiko Digital ED 100-400mm f/5.0-6.3 IS lens
This is the upcoming Olympus M.Zuiko Digital ED 100-400mm f/5.0-6.3 IS lens