Now that he's alive he can become the Jinchuuriki of the Jyuubi ( which Naruto made easier for him by extracting the Jyuubi from Obito and putting it all in one place I'm assuming). of course Madara doesn't have an unlimited amount of chakra but since he can finally become the holder of the Jyuubi and cast the Infinite Tsukuyomi I don't think it matters (and luckily for him the God tree hasn't been destroyed).