i doubt sasuke could copy the resengan with his sharingan but that doesn't mean he couldn't learn how to do it, just like naruto with work could learn how to do the chidori but i doubt kishimoto would work it out that way given that the two techniques kind of turned into signature moves for the two. But come to think of it i doubt sasuke could learn it in a matter of weaks like naruto [img]i/expressions/face-icon-small-tongue.gif[/img], he's just special [img]i/expressions/face-icon-small-happy.gif[/img]

i also think after all this is over and jiraiya starts teaching naruto again, a lot of it is gonna be based off of what he learned while learning rasengan