Sorry but this is not an expansion. This game is not set up to allow for a true
expansion. You'll never be able to continue the players storyline since you'll never be able to afford the voice actors again.
Please define expansion then ? New levels , story , skills , abilities , operations , flashpoints ... It includes everything an expansion can bring to a RPG.They don't have to continue character storyline in every expansion. Maybe they make an other expansion which includes class stories. People perceive it as an priced patch because they don't prefer to waste money on hardcopy editions. Get used to see more digital expansions ( not limited to swtor , all games will be avaible digital only in close future ) because its cheaper to host it to people instead of spending money on hardcopy transportation costs.