Quote Originally Posted by Sam98034 View Post
I guess he has a whole bunch of spare body parts like we saw in that one panel in his lab. That's probably how he survived the fight with the first.
Maybe Madara's medium term goal is to collect hearts/body-parts/powers from people in 6 special, elemental families, in order to construct a body capable of channelling all of the Sage of the Six Path's powers at the same time.

Once that is done, he would be able to put the Jyuubi back together, like we know he wants to do.