>>280579015From a character POV Serie and Frieren are probably looking at the empire (as a whole) with nostalgia goggles because to both of them that is Flamme's own creation, and the present-day empire is ultimately a reflection of Flamme's own legacy.
I think this arc ends up playing out in one of 2 ways: Serie dies, Frieren realizes how important Serie actually was/is to her now that she is no longer alive, as Serie is her last real connection to an age that no-one else has presumably lived long enough to be from (and if there are some old timers, they didn't hang out with Serie/Frieren), and Frieren will also realize that she is now the only living person who remembers Flamme. For the magic association, Sense, Falsch, Methode, Lernen, whatever the fuck that other guy's name was, etc., this will mark the occasion where it is ultimately up to them how they remember Serie.
Option 2: Serie doesn't die, despite the flags, and subverts expectations by showing her up close and personal how much humans have grown as far as magic is concerned. Those she's surrounded herself with show her that there is more to magic than warfare, and a peaceable, rational resolution is ultimately reached (surely disappointing her own expectations but pleasing her in some small way for going against her intuition).
Tonally, I don't think Serie's death suits this series. It clashes loudly with the relatively lax nature of the writing so far. Narratively, Serie's death here makes a lot of sense. Her living on can only really be achieved if a new opportunity for growth presents itself to her. If this arc is about how even someone like Serie, anachronistic and seemingly set in her ways, can continue to grow then that'd be the higher theme to write for and would align better with this manga. I don't think the writer can pull that off though, so I'm assuming Serie dies.
I think the current empire makes it clear to Frieren that the past is the past, and you have to keep moving forward.