I am completely impressed by the mechanics for religious schism (in Christianity) and am wondering if we might see the same for Islam (ie. Shias / Sunni) as Islam is obviously a big religion in the came, spread across many empires and it would be great to include that eventual distinction if possible?
I've considered this, but I don't think it's that necessary. The only civ that is historically Shia is Persia, and maybe respawned Egypt (but only for a while). The Christians had to be divided, because there's just so many of them and historically about even numbers ended up Catholic/Protestant/Othodox. For the Muslim civs, most of them historically ended up Sunni so that wouldn't accomplish anything besides weakening Iran which isn't all that powerful already anyway.
Who are IVC? I'm really curious.
The
Indus Valley Civilization. We don't know their name (and can't even translate their writing), so it doesn't have an actual name, even though they're usually referred to as Harappans after the first IVC city that has been discovered.
can think of Israelis, Assyrians, Hittites, Goths, Iroquois, the Confederate States, Tatar Khans, Finland, Scots, Magyars, Mexican/Mameluke Respawns as having a better claim to inclusion.
Yeah, if you like short lived (Israel, CSA), geographically crammed (Israel, Assyria, Hatti, Iroquois, Finland, Scotland, Hungary) or impossible to model civs (Tatar Khans, Goths) and in general more of the same, maybe they have (this means I don't think so).
Consider Congo:
- lives in an empty area that is at most represented by independents? Check.
- is long lived enough to warrant inclusion? Check.
- messes up nobody else in the area? Check.
- is different from what's already in the game? Check.
And seriously, the CSA? What's next, the Paris Commune?
(And on a general note, maybe you should play things first before criticizing them.)