More questions....why didn't Sun jump to 1977? I understand Ben's (not part of the original flight) & Locke's (replacing / re-enacting Christian) not jumping, but why not Sun?
When Jack spoke with Farday's mother and asked what if he couldn't get all six to go back she said she didn't know what the outcome would be. I think that maybe because all 6 didn't go back that they were only able to get so far in time.
I do think Christian will help her to get to where she needs to be. With her not with the others (Jin, Jack, etc), whatever they need to happen won't work.
Just my 2 cents.
