If ADMK did the same, Karuna could welcome PMK saying "We are tamils". So in politics, all can happen and Jaya wants to retain centre,so she will. PMK won't move out of center to ADMK as there is no immediate election. They want to enjoy the power. So no new alignment there. It all depends on DMK. But DMK is also a cunning party and they will put cases against all PMK top guys and take them into DMK. It all depends on how center performs. IF Jaya feels, it is not necessary, she wont take him and or otherwise, she will bargain hardly. It is not the end and there may be reproach happen. Please note that there is no difference b/w DMK,ADMK and PMK and all are same cunning parties and are oppurtunities. The game is not yet over