Madara's not comming back.

[KCMNaruto]

Madara doesn't even have the Rinnegan anymore.

who cares , Kishi ? Please don't make my laugh.

Kishi was inspired but Dragon ball manga, and there was common for someone to takeover someone other while victim busted or lost part of body then later resurfaced and was fine with all powers.

I bet all of my luck that If Madara returns then he will be as SM Double Rinnegan Madara with not Juubi power, watch it and remember I said it first.