LOST unanswered questions

LOL- my mom, who doesn't even watch LOST- went to bed on Christmas night. So I thought. Before I knew it she was jumping out of bed and asking me:

"Was it really Locke in the coffin?!?!"

I hope we get some answers this season!

I wonder if they are supposed to go back to the island or not?
claire doesn't want Kate to go back - is she right, after all 'something happened to her on the island' so if she is good we should listen to her.

I think Sun will end up being alive - him giving up his life on the boat so near the island, he will end up being 'alive' on the island (as michael was told he could relax now before blowing up the boat)

Either Locke will come alive again once he reaches the island or if he was just a manifestation - he will be alive - he better be, as I am with Locke and don't like Jack.

I wonder if people really die on the island, if they are really capable of being dead on the island. Ever since Christian manifested to Jack in Season 1, I've wondered.

There's not really any kind of exceptional support for the theory, but certain things have come up from time to time. Like Mikhail dying what, three times? And Ms. Klugh encouraging Mikhail to shoot her like she wasn't concerned in the least about it. Eko's brother appeared to him, and Boone appeared to Locke.

It's probably baseless but it niggles in the back of my mind fairly often.

I would still like to know who Henry Gale was.

I wonder if we'll get to meet him during one of the island's "jumps".