i think that another chunin exam could be good, as long as it takes place in another village and will focus more on the two first exams rather than the final battles, we need a bit of reinforcement to thier 'ninja' skills, and not just fighting powers, wouldn't you like seeing Naruto and co. in a theft operation?

still, we need a lot of akatsuki and some more focus on revealing the past of everybody... what we don't need is a 'bug saga' like in HxH...

Orochimaru and Sasuke can take a long break after this arc, and can come back in the final arc or something, it stopped being intersting when it turned into a pure fighting story,,,