Ooh! Is Ohta going to resonate with Rangiku now? Since her zanpakuto spirit is part cat you can use that to explain the compatibility between them and have the resonance help Rangiku heal from the damage that caused Gin to swear vengeance against Aizen. Then she could achieve a bankai
I don't understand why ohta is being pursued by all Shinigami women he isn't the only handsome person alive, and neither is he a God of pleasure. So, it seems forced or brainless for women to throw themselves at Ohta.