No, I think there is no chance of a takeover now. I am hesitant to put on a full position now, because it seems some people are (IMO foolishly) still expecting a take over. The CEO left Valeant on good terms in late 2012 and said he was leaving because he always wanted to be a CEO. He told Valeant's Pearson he would work for him for 3-5 years helping to build Valeant, then he will move on and build his own legacy somewhere as a CEO.
Since ENDP's CEO resigned a few months back there have been rumors the company was being shopped around and large shareholders were pushing for a sale, it probably was, but IMO De Silva(the new ENDP CEO) would only take the job if the board was not looking to sell the firm. He is a turnaround specialist, wants to build his own legacy, and these Valeant guys are looking for multibaggers, not to join the firm and then sell it for a 10% premium after a month on the job. I dont think he was taking this job to make a quick buck, he had something like $30-40m of Valeant stock and I'm sure would have made much more by staying.