What if he turns and sees the image of Han, then he drops his saber and the scene continues. Then afterwards he has the Han memory scene.
Now that’s an idea… it wouldn’t interrupt the existing scenes too much, but still have that implication of Leia’s involvement. Combined with Leia’s body disappearing after Han disappears, I think that could maybe work. Of course, if Leia’s disappearance is moved up, that does mean any other scenes with Leia’s body need to still happen before the Han conversation begins.