It’s possible that what appeared to be a noble sacrifice on the part of Classic Loki was actually him clearing the way for our Loki to take his place as ruler of the timeline. Maybe he figured out that it was a version of Loki that is behind everything but if no Loki was ever able to pass beyond the void, then everything would be undone. The citadel exists outside of time so it doesn’t matter when a Loki enters it and takes the throne. But if it never happens then everything we’ve seen would cease to exist. Perhaps Classic Loki realized that this was his one shot to ensure that the universe stays intact (or a Loki’s once chance to grasp immeasurable power). But if so, then everything would hinge on one of our two Loki variants taking over the citadel. If they do, then that means a lot of pain, suffering and death will need to occur at their own hands to ensure that the timeline remains intact. But refusing to take up this throne would mean that reality would be warped beyond recognition. If so, it would be interesting to see Loki and Sophie grapple with that kind of a choice. Not sure if any of that made sense, lol.