Okay, I have been setting here all damn day going over possible ways that some of the answers can still be answered when something occured to me. The wheel is still on the island and we know that there are possibly 2 people still alive that know about it. We know that Ben knows of the wheel and I assume that Richard does because the only other theory I have that he could have discovered it was by being a spy during Dharma times. So anyway my point is this: Why can't the wheel be turned again to bring everyone back to life and change some things that have happened in the past and secondly if the current group in the OT travel back in time when Jacob is still alive, would there then be 2 protectors of the island, i.e. Jack and Jacob???