As i had said earlier, i think we will have to wait a lot of time before sasuke shows up..... i have a feeling that when edo tensei battle will end, (with the loss of alot of alliance ninjas and the deaths of some famous shinobis) the current kages will jump into war too, from the looks of it, madara wants to either kill or take into hostage the feudal lords.....
And after a lots distraction and mayhem, he'll try to separate other shinobis from naruto & bee and launch his bijuu attack on them along with sasuke........ He might not be able to use the bijuus directly, but using their chakra might be possible.... there we'll see the BATTLE ROYALE, naruto vs sasuke............ but it might just take months of waiting.........
And i wonder how the ruddy heck did that kabuto got hold of so many important DNA samples from almost all the nations without being detected?????????
Even the DNA of asuma, which in former konoha and konoha was destroyed by pain...... Perhaps orochimaru had collected some of the important DNA's..... But it must have taken him hell lot of time and precision that seems very difficult, yet he managed.....
Again everything's getting Chilli Hot.............. Can't wait for the next chapter, hope its 30 page long.....