I don't think so.

I am hoping she will be an alternate. I know AZ is under the impression the first 12 are jurors and the following are alternates, BUT at one time a few weeks ago I distinctly recall HHJP saying there will be 20 chosen and no one will know who the alternates are until deliberations. Now, if he has changed his mind, I'm not sure. I don't believe that has been disclosed yet. So I am still keeping my fingers crossed.
btw....The way that is often done, is all 20 jurors' names are drawn from a "hat" and the first 12 drawn are the jury, the rest are alternates drawn in order. Not sure if that would apply here, just throwing it out there as a possibility that I am familiar with.