The ending deliberately leaves it wide open to another sequel which will make this a comedy trilogy.
Lets hope they don't infill White Collar Fooligans 3: The Revenge of the Russian Clowns with flash backs from 1 and 2 because we want new comedy not old.
After dragging us over several countries, and without saying too much for those who haven't seen the movie, I hated, absolutely hated the ending. Did I mention I hated the ending? :-)
Insanity is: repeating the same action - over and over - yet expecting a different result.