I'm not the smartest one in this thread but it seems to me that Madara Will Not be stopped by simply making Kabuto release Edo Tensei. Kabuto used Muu to summon Madara to the battle field. Madara is in possession of the Rinnegan. Some how, this info will have a lot to do with Madara staying on ther battlefield. Plus, Tobi overide kabuto's control of the Jinchuriki with the rinnegan (which has the power to raise the dead). So I think the major battle will continue while the minor shinobi summoned will disappear.