Empire's Expansion

[Hollerbach]

I'm almost certain the expansion will revolve around Neopolean in some way (or at least if it is M2TW:Kingdom's style, part will feature Neopolean). It just seems the simplest extension of the engine, and has a marketing zing. I think at lot of the suggestions in this thread would be more likely as the next game, rather than expansion, although who knows what that will be.