I don't think I will need to look at the Red Carnival just yet but the other three modules would be useful. I see that the engine is very flexible, I was thinking that you may want to have mods that have the basic Fantasy or Sci Fi elements and then the players could work from there. I have made a basic list of the characters, races, professions, items, monsters, character traits (or abilities), spells, etc. needed for a D&D type adventure and I would like to build up a database of these various elements and have it be a base for fantasy adventures. I am sure some of the work has been done already.
I also have an extensive graphic library of Dragonlance items, so we might even be able to build a base Dragonlance world, although that will have some serious scripting to emulate the Draconians behavior, the spell system based upon the moons, etc. That is another project for later.