The will not be getting any more powerups ffs. The recent powerups they just got from Rikudo Sennin are the most OP powerups they are going to get; bearing in mind that we have yet to see all of their abilities.
whats left, Naruto has basically done what ever he wants since the sage showed up. sasuke has the rinnigan and their really is no dojutsu thatis better than that(if their is, his freaky rinnigan counts as that)
Calm down people it's already been hinted sasuke will get one. Obito said without both eyes you aren't that strong as you would be with both of them. Sasuke's right eye is still undeveloped that or he's keeping it like, as sasuke did have EMS but now it's a regular one there is a possibility he is just concentrating power in one eye but he will so that his other eye gets developed or just to enhance his power. Plus his moon sign has to do something like take power to how naruto's can give power ir recover something. Sasuke still hasn't used ameterasu which he could use to "counter the lava" so sauce is holding a lot back. Kishki knows what he's doing