Locke and Sun
Just haven’t heard of theories about how Sun, Locke, Ben and Linus will return/catch up with the rest of our Losties. It seems t be the case that someone is going to have to turn the FDW. However if they do this then will the island start skipping through time again and who will be the person to leave the island?
I think Locke will somehow trick Sun to turn the FDW and is returned to the real world. He’ll play on her desire to be with Jin. This last bit is just my own thoughts, but would like to hear anybody’s thoughts on how they will meet up especially as we seem to have alot of new members with some great ‘out of the box’ ideas.

I was thinking Lapidus will turn it. He, at this point, is kind of a throw away character. Then again, what ever the future holds, they may end up needing a pilot to get off of the island.
bigdaveg, young Charles Widmore told Locke he was tricked off of ‘the island’ by Ben, so I am thinking he will be next in line to turn it.
I am not sure if it will get turned again after that, but you never know. They may hang onto Lapidus in case for some reason, #815 doesn’t crash next time around, and the writers need a pilot to take everyone off of ‘the island’. Who knows!
I think Chuck is going to turn the wheel and it’s going to react poorly with some experiments the hippy scientists are doing at the time with time causing the incident. There will be a flash and the Pasties with be thrown into 2007.
I don’t think there’s such thing as a throw away character in Lost. When you’re gone or dead on Lost, you’re not really gone or dead. They always find a way to bring people back, ya know?