|I do not see how some of the reinstated characters would work. The jinchuriki for instance, are they as deadly say if they had their bijus in them. They would just be like "normal" with not large chakra reserves, chakra cloaks or all that jazz that comes with a biju. Or Zabuza and Haku...true they can heal from fatal attacks and have a unlimited(?) supply of chakra but does that mean anything against Gaara or someone on that level.|
Based off Gaara, I think it's fair to assume that the jinchuriki will maintain the powers/abilities that their beast gave them, however, they will have severely less chakra.