If Heller is going along the route of inventing a twin brother at the last moment just for the sake of a twist in the plot he might as well name the season finale "Jumped The Shark."
This is awful.  I feel sorry for Simon and Robin and the rest of the cast for having to act like this is so believable.  It's also sad when the fans can pull better scenarios out of their butts in under 3 paragraghs.
C'mon Heller, show us we are all on the wrong track.