The Jinton that Obito has possesses the 4 main elements of air, fire, earth and water. Air, fire and earth are what is needed to produce Jinton, IIRC this was disclosed in one of the meetings during the early war arc. Juubito has added in water to allow the Jinton to be formed into any shape he may choose since it is semi liquid. As per Hiruzens explanation, it goes beyond any bloodline limit currently known. HOW Juubito has acquired this is a very different matter as some have already noted.
So the answer I've been waiting for has been answered. Sasuke intends to kill off the tailed beasts. Unfortunately this now means he has no choice but to not only fight Bee, if he survives the war, but ultimately he must fight Naruto. Whether or not he simply he wants to kill Naruto is beside the point, to kill off the tailed beasts, Naruto must die as well. So the final fight has been decided.