I can definitely see this being a setup, but I can’t help but feel very underwhelmed about the whole situation.
She shows up, gets defeated, drops exposition, lives or dies depending on the player, will never see again till the payoff comes.
this happens A LOT with ao bosses. Shura shows up and disappears, hoping for payoff. Elius appears gets defeated spews exposition and lives or die by the player, still hoping for payoff. Argos, big man with big armor and big weapon, legendary warlord, gets 11 dialogue boxes (i counted from wiki) before dying. Argos has payoff, with his death throwing ravenna into a panic. But honestly that feels underwhelming because when we stepped foot into ravenna, we were fine. We were like tourists, we even had a casual chat with Revon.
Only until we got attacked by Carina and Julian did it feel like it was a payoff, but the thing is the moment just feels so quick. We, the audience, don’t feel the impact of his death.
Carina is also another “appear, defeated, exposition, die or bye”. Julian gets 2 appearances and we haven’t seen him since. unless he’s going to play a major part in the later parts of the story, he hasn’t shown it.
He could definitely play a part in the war (i have a prediction he’ll let it out to nilah we killed calvus if he finds her). but again, we have to wait for the payoff.
Iris is the exception to this rule of course, but we rarely get to see her in the story. She doesn’t do much to help us right now (and no, killing a bunch of guards in the hall doesn’t count. remove that part of the cutscene and the story will not change)