Sounds dreadful, Luke is being tempted by the dark side and struggling against it. He snaps when Vader hints at corrupting Leia. Having him crush Fett to death is too out and out dark.
How would you feel about Luke decapitating Bobba the way Jules did his daddy?
‘Cause I gotta feelin’…
😦
Not saying this should be done, but I could envision how it could be done. There’s a random shot of Luke swiping his lightsaber across the camera very quickly but you can’t see what he’s slashing at. You could insert Fett into that shot and instead of cutting back to the inside of jabbas palace like it originally did you could cut to another shot of Fett’s body crumbling to the floor. The preceding shots would also have to be manipulated to show Fett getting closer to Luke though.