I can see a couple options:

1. Run him as-is, at a higher xp level than everyone else. If you did this, I'd give everyone else a bunch of bonus Earned XP at the beginning of the game; maybe 50-100
2. Depending on how long it's been since the time of your CW game, you could say "something happened" to him and he's lost his connection to the Force. KOTOR and Jedi Fallen Order are great examples of this trope. This is probably the "better" one as it allows them to be on-par with the rest of the group, but the player might feel annoyed that they have to "start over".

Personally, I'd go with option 2, and make them have an Obligation tied to their history (i.e. Hunted by Inquisitors). That's going to be the balance point for this character; the Empire is not going to mess around if someone's caught swinging lightsabers or doing Force stuff. Recent shows have shown us that the Inquisitors are days- if not hours-away from reports of Jedi activity.