Let’s see, few responses:

The T minus 5 scene is being tweaked further? I’ll look forward to seeing what’s there. I don’t mind the way it is in V1 with a woosh through hyperspace followed by a zip out across realspace. But I’d be happy to include the reordering as that seems like how it would have been if it were made that way in the first place.
I don’t plan to use the red Sith lightning, no. Personally I don’t really get the appeal, and I like how the Sith lightning in the movie and others goes along with the natural phenomena of the Sith homeworld.
The saber fizzling out will be great to see. Exciting to hear its (almost?) finished!
It’s hard to get myself to care about a discrepancy between the lights being off in the main shot and on in the distant shot. No one would ever notice that.