There are two major things that give me hope there will not be a hung jury....
1. This jury LOVES Judge Perry. He goes above and beyond the call of duty to make them happy and he shows his appreciation in so many ways . So I really do not believe they would give him a hung jury. It is up to the judge to work with the jury and try to get them to successfully deliberate. They would not do that for the SA or the DT, but for the judge, I think they would try really hard to come to a verdict.
2. Although there are many many theories about what happened, from complete accident, to premeditated cold blooded murder, nobody has much sympathy fro Casey Anthony. Even those who believe it might have been an accident are horrified with her behavior and actions after the tragedy. So it is not the case where half think she is guilty and the other half think she is a poor, sweet innocent victim. So I truly believe that they will be able to come to a compromise, at the very least, 30 years to Life, imoo.
I do not think she will get the DP, because of sympathy for the Anthony's mostly, not for her, imo.