Here's an idea how to make xur worth while. Firstly why does there only need to be one xur. Why not have multiples. One that spawn on vanilla d2 area selling only vanilla exotics Then one for season pass content on mer and mars selling exotic from that and unique legendary rolls for the forge and bray tech gear Then one for forsaken. Selling initially very few exotic but legendary stuff with special rolls. Like a submachine gun with explosive rounds. You could also add previous season content to his inventory as a way for new players to old sparrows. Ships. Etc