[I]Okay this is just a theory no guarantee it will happen I'll keep it short.
Okay, a few months ago my friend told me something I would like to share , at first I didn't agree until I found proof.
So my friend said to me "I think some how Yamto and Hashmira Will combine somehow"
First a disagreed but then Manga chpt. 514 came and Yamto was captured by Kabuto
After being captured Yamto was used to power the white Zetsu army,The army was powered by an Artifical hashmira Made by Madra
And If I re-call then Yamto was put in the giant tree trunk to power the White zetsus cause he had cells from Hash. also Hashmiras clone was in that Giant tree trunk that Powers the Zetsus. You see where Im going with this..?