I like the idea of the juubi's HP bar being red and certain parties readying their pokeballs.
Maybe they should paralyze or put it to sleep first just to be sure, though.
I don't think the Juubi is dead; but I feel like he would have to be defeated pretty soon b/c Madara is so OP that they need the Juubi out of the way before taking him on.
So no, the Juubi is alive and kicking.