Okay, let's guess if any of my civs are in danger from the new expansion, and, if so, what civ should I turn them/re-cycle their abilities into.
I think I'm mostly all right. One of the factors when I chose to make a civ was if it would likely be in future DLC or an expansion, which is why I avoided obvious choices like Portugal and the Zulu.
No chance in Hell to be in the expansion:
-The Garamantes, obviously.
-Kievan Rus', for similar but slightly less obvious reason as the Garamantes.
Basically no real chance:
-Mali, Songhai kills it.
-The Goths, if they were going to add them it would have been in the last expansion.
Was worried:
-Sumer, I wouldn't have minded seeing an official version of them, but the screenshot of the Siege Tower basically confirms Assyria for me which kills Sumer's chances. If they do get it, their ability is being recycled into Harappa.
Honestly not sure, but still not that worried:
-The Hittites, they were important, they are civ veterans, their inclusion in the Wonders scenario slightly kills their chances (which is why I originally included them), but I don't feel that's much of an issue anymore. Some people may discount them on account of Assyria, but the Hittites never really overlapped with the Sumer-Akkad-Babylon-Assyria group. If they do get in their ability would get recycled into a new wonder (either the Isthar Gate or the Persian Gate of All Nations). Honestly, they're the civ I'm least satisfied with and did the least amount of art assets for, so their inclusion would be no big loss to my modding efforts (and I kinda would like to see an official version).
-Benin, I feel the African Scenario confirms at least 2 new African civs. Three (a third of the new civs) seems too much, and only one would leave the actual African continent pretty sparse. Granted it could just have scenario civs as it would almost definitely already be featuring two new in Portugal and Zulu. Anyway, if you want to go with the most important Sub-Saharan Empire that also played a huge role in colonization it would be Kongo and Benin. I feel Kongo wins out in importance and fills an empty area of the map (with Benin being very close to Songhai's domain). Great Zimbabwe was an important empire as well, but less with colonization and it's land area would be close/overlap with the Zulu. Don't know what I would turn them into.
-The Timurids, okay, I would love an official Timurids civ, but they're also the civ I've now put the most work into and they have a really cool new ability and I wouldn't want that effort to go to waste. I can't think of obvious reasons to deny their chances, maybe you can even argue they fit with the trade motif with the Silk Road. I'm sure I can find another civ to take their new ability, though.
Anyway, my actual guesses for the expansion are:
Poland
Assyria
Portugal
Zulu
Kongo
Sioux (or another native North American civ)
Majapahit
Brazil
???
All of those I'm confident with and could think of good reasons that fit the expansion or needs of the game. The last spot I don't know, a surprise dark horse candidate maybe.