the real madara still don't know that all uchiha's are dead except sasuke & tobi......what his reaction will be after knowing about uchihas.....your thought.....
That's a good question. Tobi said that he is Madara, Edo Madara said he died. Tobi helped killing the Uchiha people. So how would Madara react? I think thats sort of a proof that Tobi is NOT Madara or?
I think eventually he was going to take them out, so I don't see him crying over it , however with sasuke being the only one left he could try to mentor him and mold a new generation of uchihas.