100 Chapters

[Carlhens]

after the war is over if kishi decide to let us see some flashback i wont mind just not hashi and madara only though

 

[paratise]

Maybe after the war arc is over; but certainly not now.(and not for 50 chapters...30 would be more than enough)
Maybe in databook 4, Kishi will give us some info about the histories of the villages, more feats about former kages, other clans and stuff; i would prefer this way actually.
I also want to know how k11 passed their chuunin exams, maybe in a some sort of gaiden.

 

[Azuki]

I wouldn't mind, it would be so interesting and you could learn so muuuch more from the ancient characters xD If something like this happens then it would be so AWESOME