Doubt it would happen but JNJ, ABT, BAX could do it. Outside shot at Frensius and other foreign companies. Also potential buyers are other companies that might want to branch into new business like EW or MDT is possible but unlikely.
I would say M&A is not going to happen in general given overall market conditions. And foreign buyers will be quickly ruled out as the dollar continues to strengthen. Buy based on mispricing and the great possibility that Obamacare is toast. Most are not set up for that probability as they think the mandate is severable. Some stupid nuts even think Roberts will join the liberal justices and votes for Obamacare (what IQ do they have??).