This is something I thought of recently while talking with someone about how OP Madara currently is in Naruto.
Currently, Madara is literally unkillable. He can only be sealed away or kill himself by his own will. The latter ain't happening cause his ambition is too great. The former currently seems impossible because of how plain strong Madara is.
But his ultimate fate may have been forshadowed already... In Danzo.
Danzo and Madara have something in common, using Hashirama Senju's cells to use wood techniques.
From the Naruto Wiki for Danzo:
"However, after suffering a fatal wound during his battle against Sasuke Uchiha, Danzō lost control of Hashirama's cells, which began to rapidly grow into a large tree that threatened to engulf him completely. To prevent that, he broke off his right arm, causing him to lose this ability."
Danzo was able to free himself by removing his arm. Madara's Senju cells are in his chest.
What would Madara do if he lost control of Senju's cells?
He'd become a ****ing tree.
An immortal, totally badass tree, but still a tree.
This would also be a fairly poetic/grandious death for such a big, imposing figure, so it could fit without seeming absurd or anticlimactic.
Any thoughts on the theory? The only real issue I can see is how he'd lose control, considering it's impossible to give him a "Fatal wound" now.
