I say this because they may just go and get 2 white zetsu arms and get Sakura to attach them on! Meaning they will both have hashiramas cells and can then do wood style attacks:Omg:!!! Any thoughts?
Maybe minato is part senju, it would explained his ability to learn FGT and how is son is similar to 6 paths as noticed by the juubi. Possibly his dad could have been namikaze and his mom senju or uzumaki?