>>I don't think he has to be in the same timeline as Sarah whilst they're apart, so long as he can secure the time coordinate of when he jumped from (from JH/Cameron).
It really does NOT make any sense for jumping forward to produce a new timeline. Or rather it might, but not in a way we care about. It would only produce two new timelines, both beginning from the moment when John appears in 2027ish. One version where he appeared, one where he didn't. In any case there's no reason to randomly create an entirely new timeline where Sarah didn't exist. Everything that didn't get changed would stay the same.
>>Re JH/Cameron. Presently I'm thinking that Cameron was John Henry all along
I've been toying with that theory as well, or variations of it. We see Cameron's original creation which doesn't seem to mesh with her also being John Henry but the whole thing is so vague they could really go any direction with it. I also wondered for a while if every time Cameron said "Future John" she was actually referring to John Henry, but as I'm rewatching she seems to specify she does in fact mean Dekker's John. "He's not John. Not yet." Unless Cameron is lying there, but then she could be lying about everything.
>>>Re Sarah stepping back out of the time bubble.
I don't think you and Roxy are disagreeing here. Did anyone actually claim Sarah stepped into the bubble before she stepped out of it?
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It really does NOT make any sense for jumping forward to produce a new timeline. Or rather it might, but not in a way we care about. It would only produce two new timelines, both beginning from the moment when John appears in 2027ish. One version where he appeared, one where he didn't. In any case there's no reason to randomly create an entirely new timeline where Sarah didn't exist. Everything that didn't get changed would stay the same.
>>Re JH/Cameron. Presently I'm thinking that Cameron was John Henry all along
I've been toying with that theory as well, or variations of it. We see Cameron's original creation which doesn't seem to mesh with her also being John Henry but the whole thing is so vague they could really go any direction with it. I also wondered for a while if every time Cameron said "Future John" she was actually referring to John Henry, but as I'm rewatching she seems to specify she does in fact mean Dekker's John. "He's not John. Not yet." Unless Cameron is lying there, but then she could be lying about everything.
>>>Re Sarah stepping back out of the time bubble.
I don't think you and Roxy are disagreeing here. Did anyone actually claim Sarah stepped into the bubble before she stepped out of it?