Its going to be a mix bag of AIADMK, DMK and Rajnikanth and they will all support BJP to form the govt. since they would want to have a piece of the pie.
Pretty clever on the BJP's part, but where do you see Dinakaran in all this? After all he managed to beat both AIADMK and DMK in RK Nagar. Do you think maybe BJP will find a way to nail him down for corruption along with his aunt? Or could popular sentiment/sympathies propel him to a good performance if it looks like the other parties are all playing ball with BJP and he's being "harassed" by central agencies?