yeah..i think that madara was too confident that he would come back..that said i think he could be manipulating a genjutsu on him..or that he knows something that nobody knows..like rin beeing a double agent or something like that..
this is a good question, it is shared vision by obito and kakashi or is it that zetsu clone of kakashi that is using telepathy with the spiral zetsu to show images to obito?