Editing/changing the content would be a mistake imo, and would ruin completely that unique, custom-made setup around Connor: voice, motion capture, and liabilities around the main story.
That makes a lot of things to modify at the risk of changing the mission 
I have no idea how to resolve this hell of a mess but i would change the stuff at the last resort if there are no other possibilities.
Still looking forward to a solution to bring back this DLC in a form or another 