That's a peculiar way to have a flashback arc. If you can even call it that, considering it's not the Frieren of the past but the Frieren of the present (or the past's future) now involved in it.
I wonder if this actual time travel in which you can change the past.
Or if this is more of the "astral projection" type of time travel in which you are merely a witness to past events and cannot change the events that have happened?
Oh shit. Was worried about the news of the extended hiatus but it really does some to be in preparation for the next big part of the story. I have no issue with them taking their time getting it set up.