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.
"There is something going on in time and space, and beyond time and space, which, whether we like it or not, spells duty." -Winston Churchill
"For of all sad words of tongue or pen, The saddest are these: 'It might have been!'" -John Whittier
"Apathy is death." -Kreia