Since this game is allegedly set before ANH, I very much doubt that we'll see Luke, since he's still just a teenager on Tatooine. It would be highly disruptive for him to see any action or adventure before then.
"Grant Allen [...] had written a book about the Evolution of the Idea of God. [...] it would be much more interesting if God wrote a book about the evolution of the idea of Grant Allen." ~ G. K. Chesterton, The Everlasting Man