Some people believe that Itachi didn't kill the Uchiha clan, others believe he killed the clan to protect or help Sasuke, and others think that Tobi/Madara forced him to do so.
I don't believe in any of these theories though.
We don't know if there will be a filler saga or not. If there is it would be the perfect time to show the old pokemon again but if there's not, I wouldn't mind keeping the oldies aside. Of course, pokemon like Cyndaquil or Totodile that had no decent development in their regions and after that...
The translation is out
There isn't very much dialoge in this chapter.
Sasuke seems to have found out that all the Bunshin that Itachi created say "You have become strong" and attacked the Itachi on the throne because he didn't say that. I doubt that's the real Itachi though.