You can have an establishing shot sequence that includes the outer shot of the Deathstar wreckage, the boat entering from below, wide shot of the inside of the wreckage, shot of the hallway with the storm trooper helmets, empty throne room shot - wide shot of Kylo standing in on the edge - enter Han Solo.
Flashbacks would be too overkill I think, at most I’d go for faint echoes from the throne room scene in ROTJ, “you already have, you where right about me…” etc.