To begin, i believe like alot of people in this site that RJ is somehow alive and we will see a better episode of Jane finding who he is. Why am i so positive you may ask? The reason is that the reveal did not satisfy the fans in any way. Even the last episode had more suspence more tricks by Jane and more action. I just cannot see the big reveal that we are waiting for being given in such a horrible way.
The last episode is going to be RJ related and it is going to be a double episode filled with flashbacks
action and a talk between RJ and PJ. At least that is my guess.