Tobi's basic plan, as far as we know it, was this: Use the tailed beast chakra to make an army of Zetsu clones. Use the Zetsu clones to fight the war. After the first day, use the Zetsu clones perfect copy technique to pretend to be allied ninja, to create confusion and assassinate many ninja. This will lure out Naruto, whose special Fox powers are the only thing able to sense zetsu clones. Once naruto is out, Tobi will overpower and capture him with the Gedo Mazo, the other tailed beast powers, and some other techniques from the Rinnegan and Sharingan. Also, along the way, Sasuke would be turned into some kind of ultimate warrior to be Tobi's ally.
However, Naruto and Bee together, along with Kakashi, Gai and an army of reinforcements might be more than enough to hold back Tobi on the battlefield. This is especially true because Naruto keeps getting more powerful the longer the battle goes on. His sage mode sensory powers combined with his increasing connection with the fox allowed Naruto to fight 5 other Edo Zombie Jinchuuriki by himself and win, something that tobi didn't think was possible. On the back side, Sasuke killed the original white Zetsu and is either an enemy of Tobi or at least not a reliable ally.
Tobi does have some sort of backup plan, we know. He did collect the sealing jar with the Kin/Gin brothers and the 9-tails chakra. he also had a portion of the 8-tails chakra from Sasuke and the tentacle. This might be enough for him to form at least a weakened version of the 10-tails, which would still make him the most powerful ninja on the battlefield.
If Madara was somehow able to survive the release of Edo Tensei (and with Rinne Tensei, I suggest it is possible), that makes up for the other things Tobi has lost (Sasuke, the original white zetsu, Naruto's inexperience and lack of fox-control).
I don't think the war is over, because Tobi had a plan before Kabuto and his zombie army ever joined, and with Yamato's capture Zetsu is still stronger than Tobi had planned, and the zombies did help to kill more allied ninja so his army of Zetsu is larger after the first day than he planned. We've still got a lot of war left, I think, but Tobi did lose a lot of his overwhelming advantage.