Well, who knows if the island timeline and the AU will even be seperate in the end? They could end up merging together for all we know!
Although if it is separate I'd like to think that Charlie/Claire will meet and end up in a "hopeful" place.

I just assumed because of all the different things that Charlie mentioned that he saw flashes of Claire, you know exactly like Desmond saw of Penny when he was getting the catscan.

lol at this point I just want Daniel to come back period!