Just a new idea...

What about South East Asia: Total War... In 1400 - 1800 AD (pretty same much as in late MTW & M2TW + some early Empire), there lies some of the most potentially superpowers of trade in the world... Indonesians, Philliphines, Malaysians, and IndoChina Peninsulla is the most contested colonial lands in asia... they produce spices, and capable to muster out great armies... and empires... giving the europeans don't wreck their chances by picking them off one by one ...

It would be nice to see an area full of "Swords, Spears and Bows" must hold themself up against an invading European invaders (as horde)...