Here is the current roster of changes for V4, written as though already complete.

The vision Rey experiences while training with the remote has been heavily modified to better establish her apprehension about the Sith throne and her sense of unworthiness, and has been separated from Kylo’s vision (help from DominicCobb)

Added a new illustration to the ancient Jedi texts to foreshadow the healing technique seen in this film (illustration by NeverarGreat, composited by RogueLeader)

After Rey heals the sandworm, she mentions to BB8 that she learned how “from the ancient texts,” involving them to a greater extent in the movie to increase a sense of connection to TLJ (AI voice provided Jar Jar Bricks)

Changed Rey’s line to Leia as she turns over the lightsaber from “your brother’s saber” to “your family’s saber” to begin to plant a seed about eventually identifying herself with the Skywalker family (AI voice provided by Jar Jar Bricks)

In a callback to a line modified earlier, when Leia hands Leia the saber before she departs the base, she tells Rey, “You are family” (AI line provided by Jar Jar Bricks)

During the flashback to Luke and Leia training together, replaced mention that Leia sensed the death of her son at the end of her Jedi path with mention that she felt called to serve via diplomacy as their mother did (AI voice provided by Jar Jar Bricks)

New dialogue for Poe during the briefing scene establishes clearly that the Final Order fleet consists of modified ships from the Empire, rather than implying they were built from the ground up later on (AI voice provided by Jar Jar Bricks and RogueLeader)

Added a line for Kylo Ren calling Palpatine “a ghost in a rotting clone” (AI voice provided by Jar Jar Bricks)

Added two brief lines for Jannah to establish that her stormtrooper mutiny was inspired by Finn (AI lines provided by Jar Jar Bricks)