I think there are a variety of products in this; an RPG, a 30mm Skirmish game, a 15mm Mass battle game (mm, sandworms!) and possibly a starship game.
Personally I would so love a 30mm range- BUT! It must be done right, we need Copplestone, Perry Bro's, Gubser, Kev White, Richard Ansell and a few more I cant think of at the 'mo.
Set it up with various periods (though book one is the best period).
Lasguns and shields are dealt with using the book. Make this ultra real to the books. A lasgun means armour doesnt count for jack, shields mean CC becomes important as does body armour, speed etc, the Holtzmann-Lasgun effect basicly creates a nuke killign everything on the table (but dont allow players in game to do this or at least have it only possible after the side shooting loses 75% of their men. Also allow menw ith shields to turn them off.).