My thoughts exactly digl. Then again, we may not see luke at all. In the scrolling summary at in the cut scenes (it wouldn't be starwars without it.) it may say something about how Kyle made this journey or something had to do something for luke to get his saber back.
I dont think we'll see luke either.....it'll just tell us the background at the beginning and go straight into the problem. Like in JK we didnt see Morgan Katarn being killed....bits like that are pointless! We only saw Rhan cause it added some action!