I love how Kishi always use buddhist and shinto religions as ideas to come up with jutsus. The senpou Shinsuusenju Jutsu is based on a buddhist goddess name "Guanyin; the 1000 hands" a.k.a Goddess of Mercy. her purpose is to be able to constantly reach out to those in need. she is goddess, mother figure, friend, guide, and protector; to the philosophical she represents the divine force of compassion that not only pervades the cosmos, holding all together in harmonious accord, but also manifests in this world in various forms sometimes through the spiritual nature of one or a series of great men and women. The purpose is to protect people with love and compassion. The goddess also has an ability to seal evil, corrupted energy, and tainted beings and lock them up within her special container.
Hence, judging from the nature of this goddess, I think the Shinsuusenju jutsu will be used an an offense and defense at the same time to counter madara & kyuubi. And my prediction is that this is the jutsu that will seal and take the kyuubi from madara while also draining Madara's evil and foul chakra and stamina, thus deactivating his susanoo and will leave Madara vulnerable without Kyubi and Susanoo. Then Hashirama will be attacking non-stop in coop with the Shijusenju and that's how I think Madara will lose to hashirama.