Re: Everything.....
I wouldn't go after her if she does take it over. Let her do things on her own, and you do your part and document everything, now that you have more time due to less responsibility. Then catch her screwing up, and document that each and every time. And if she asks for extra help, refuse it. Make sure you draw out your boundaries and have it documented what youre duties are, so she doesn't decide to pile up stuff on you.
If she didn't do work when you were leading her, she sounds the type that wants the money/fame and will end up dumping her work load on others.