It's been obvious from the start - they've telegraphed, laid groundwork for and outright said - that Babs is retiring as Oracle and getting back in the spandex while Cass is getting kicked by the wayside. Some fans have postulated that it's too obvious and therefore a red herring, but I don't buy that. What I am beginning to suspect, though, is that there's been enough backlash that they've reconsidered that and changed their plans for the two Batchicks; that would definitely result in the kind of confusion we're seeing here (and elsewhere, with Oracle), and it's not outside their MO to respond to the fanbase like that.
I wish I knew how far in advance these issues are being done; trying to figure out the behind-the-scenes meta behind all this is a hell of a lot more interesting than any of the actual story has been yet.