Hal already included a portion of duel of the fates in Rey and Kylo’s actual duel. I personally don’t think that’s the right moment for it, Testing.
The only other place I’d be interested in seeing it would be when the Sith cultists are chanting (I think someone made a concept of that already?)
And Chase, where exactly in the film does that footage come from? I seem to remember footage of First Order troopers on Kijimi from the documentary that could be used so we wouldn’t be removing a transition from somewhere else. Other than that, I definitely like it.