Madara will definatly Kill Konan...only if Naruto intervene ....As you all know....No matter What..Naruto will always overcome his Enemy...he is the main character...he can only be beating but not to death....Trust me..
konan will definitely survived with her fight with tobi, because she is the only one remaining witness how naruto will fullfill his promise to nagato and all village of Amegakure ...
him getting the rinnegan would be one of the most disappointing things for me. The only thing worse than that would be him dying and tobi becoming hokage