I'm not too keen on this veteran idea myself, but I'm willing to suspend disbelief if it's handled well. All depends on how they explain it. Being "out of touch with the force" is the reason they give now, but I'm sure that will be expanded upon.
btw, you should start Kotor2 with some powers, like you do feats and skills. You are a Jedi. Even if you're rusty you'd still remember something. There's plenty to choose from that won't unbalance the game.