Re: Obito and Madara.
Well this chapter confirmed nothing. Only the flashback gave a little hope that he may be Obito, however, usually when we see a flashback of a bad guy he is about to die or already dead. Like with Konan (not bad tho), Danzo, Kabuto, etc..
First let me say, the translation in Narutobase of the last sentence is wrong. I spoke to a japanese friend and he said the one in magastream is more spot on, which is typical for mangapanda scans, in general small mistakes can be very misleading, like here they told us that Tobi is Obito, however, that is not what Kishi wrote. Guessing they can't translate or they are fanboys xD
Anyway what mangastream translated was that the name obito was finally surfaced, meaning Kakashi finally said it, we saw him thinking it before, and now when he saw his face, we must admit it could very will be obito, but it could also be shisui - or about any other uchiha, since the body is partly made of something inhuman.
So basicly nothing really happened. Kishi just trolling us and make us wait for chapter 600, where we most likely will get a reply from Tobi to the word Obito. Kishi will troll all of us, wait and see.