The idea of the blade changing briefly to red reminds me of a discussion on this site ages ago where people were debating whether to have Luke’s eyes turn red briefly as he is defeating Vader in RotJ. The thought was that it would show how close he was to the dark side before stopping himself and his eyes would return to normal.

Some people thought this was a good idea but some people thought the visual would be overkill as the scene shows what’s happening perfectly without this.

Personally I feel it is similar to the idea of “show, don’t tell” - but in this case it would be “don’t lay it on TOO thick”. Where the scene already portrays something I’d say let the visuals enhance it, but the problem with the prequels is many scenes don’t convey things in a particularly elegant way, so some visual assistance could be good, but could also be somewhat overpowering and cause the film to feel dumbed down.

Just some food for thought. I did like the trailer though and am looking forward to seeing more of your work.