A few weeks ago, I asked the question in my blog: "Would Rick Rocket customers like reasonably-priced expansion packs with new stories and new missions?"

I'm posting a link to it here, so it doesn't fall off the radar.
http://www.mygamecompany.com/forums/...read.php?t=499

By the way, it's not looking good for the expansion packs so far. Nobody has responded yet.