You guys don;t need my input on this, but I think that starter kits have to have simplified rule variants, so that new players can instantly jump into play.
The starting adventure should be intriguing enough to get them revved up, and introduce the players to the more iconic characteristics of that universe. It should also never be mentioned again in the rest of the publications, except maybe ten years later, as a special ten year anniversary edition, that's far more filled out and appeal to the player's nostalgia, in order to get them to buy it.
Three booklets is a nice traditional touch.