I’m glad you’re taking on this task! I had done my own version that is very similar with the NK killing Arya and then Bran warging into her to deliver the final blow. I don’t know how difficult it is going to be to do convincing VFX on her face when he kills her. If you did maybe a blood splatter on the NK’s face that might be easier to pull off.
I’m very excited that you are doing this one with the original score as well!
Just curious on your last point, why do you have Bran warging into the future during the Battle of Winterfell? Why have him warging then and not just in the moment while Dany is at Kings Landing?