Not from what I understand. Shannen is perfectly happy to do the show or not do the show, but, if she is, then she wants to get paid. Yes, she is loving being the center of attention again, but she also know that she survived without it for a long time and so, it is going to have to be put up or shut up time over at the network.
Since Jennie Garth just signed an extension to do more episodes, Shannen at least will know how much she needs to make to be the highest paid performer on the show. Oh, yeah, that's what she wants. I bet she doesn't care if it is just a penny more than Jennie, but she wants to be the highest paid actor on the show.