The one time she was shown, Annie was just a girl (or was she?). And then she was gone and there was no mention of her since, Although Damon and Carlton stated she was an important character, there hasn't been any elaboration. Now there are 13 episodes left. Are they going to follow through?
Jacob told Hurley that someone was coming to the island and told Hurley to turn the lighthouse to 108 degrees. Whether he actually intended to use the lighthouse to get the person to come to the island or actually meant it more for Jack is up for debate I guess, but the name on the 108 line was Wallace. Could it be Annie's surname?
If you feel like it, vote on the probability of this being correct.