Pretty sure I read from a reviewer who was part of the group that got the first 6 episodes writing he honestly has no idea what's going on with Jack Crusher (can't find the link now sorry). Which means any explanation isn't in episode 6.With the benefit of a few days to chew on it, "Impostors" is the last episode where I feel they can get away with stringing us along about what's going on with Jack Crusher -- and even then, five episodes of teasing with no substantive explanations is teetering on too many. Hopefully the last scene means we'll start getting some explanations next week.