We know that kakashi was able to fully develop his sharingan to Ms level despite being a non-uchiha. Surely its not out of the question for him to obtain the ems. He NEEDS one normal eye because the constant sharingan usage wears him out. We also know that only sharingans of siblings (or close relatives) are compatible for ems. I wonder if obitos eyes are compatible with each other. I think that after obito is defeated (probably a change of heart mixed with talk no jutsu) kakashi will take his eye and merge the two into ems. Thoughts?