I have been finking about sasuke's ems lately and i came up with smthin i am not too sure though but i have reasons to beleive that sasuke will get the elder son of the sage of the six paths eyes. it made sense to me when madara revealed he was the one who gave nagato the rinnegan and the fact that we have not seen his ems since his fight with hashirama senju means he actually found a way to turn his ems into the rinnegan but he needed senju (hashimara) powers and he later succeded in turnin them into rinnegan after obtainin his cells but the only way he could use its powers is through gedo mazo, we all know how dangerous it was to synchronize with it as seen when nagato summoned it durin his fight with hanzo and to avoid this risk he gave it to an uzumaki (nagato). I think the elderson's eyes is a form of EMS(since all individuals have different forms of EMS and MS) and the sages prophecy about naruto fighting a young man with great powers in his eyes means he is going to be on par with naruto when they fight even with kyuubi in his side and itachi wanted to pass on a new power to sasuke through EMS makes me fink his ems will surpass madara's. Plz i'm not sayin he will beat naruto.