Just watched the episode. So was Layra himself who decided to seal Zarc. We can see Ray's spirit leaving Layra's body. So either probably this time were splitted Zarc and Layra into 4 reincarnations, or probably Layra reincarnates with Zarc inside him. In episode 142 it is said that Yuya gets back some lost memories. Something tells me that the Zarc thing is NOT over. In 9 episodes, shit can happen.