An alternate timeline where she survives? I don’t think that’s it…
I don’t see how the fact that characters who died have been confirmed for the last season means that they’re all suddenly going to be alive. That seems a bit too… unsatisfying. Seems very “it was all a dream” to me.
When I saw his tweet, I assumed he meant she was back in flashbacks. Or as a ghost of the island or something.
What do I know though?