As you say, that is your opinion.
They will probably finish that american civil war scenario which was planned for Gods and Kings, so there is very good chance for a native american native civ connected to that.
I would say Sioux and Comanche has the best chance for that place.
In my opinion there won't be 2 north american native civs in the expansion, so this further decreases the chance for thte Inuits.
There is not a great deal of civilizations left that would be considered by Firaxis. Can you list more than ten civilizations that you think have a good chance?
Let's get back to the civ poll:
http://forums.civfanatics.com/showthread.php?t=460009
Current vote number: 289 (+116):
1. Portugal: 139 (+65)
2. Zulu: 135 (+59)
3. Indonesia: 118 (+36)
4. Brazil: 103 (+53)
5. Sumer: 100 (+38)
6. Poland: 98 (+38)
7. Kongo: 94 (+28)
8. Hittites: 88 (+36)
9. Sioux: 81 (+27)
10. Tibet: 74 (+24)
11. Khmer: 69 (+24)
12. Assyria: ~65 (+27)
13. Phoenicia: 63 (+26)
14. Hungary: 62 (+29)
15. Hebrews: ~60 (+24)
15. Morocco/Moors: 60 (+18)
17. Armenia: ~50 (+18)
17. Zimbabwe: 50 (+13)
19. Mali: 49 (+18)
20. Vietnam: ~46 (+15)
21. Khazars: 45 (+11)
21. Nubia: ~45 (+15)
21. Swahili/Kilwa: ~45 (+15)
With at least 3-4 North American Native civs going in this list somewhere between 45-70 votes
Apache, Navajo, Comanche, Mississippian are among the most likely candidates that made it over 45.
Portugal, Zulu, Sioux, Sumer, Hittite, Khmer, Mali were already full civs in previous titles. All of those have a decent chance IMO, with the possible expection of Mali
If not the Sioux, then the Comanche instead because of their role in the civil war, as I mentioned earlier
So that's at least 6 good candidates already
From the first 16 civs on the list:
Some kind of representation of Indonesia is very likely. Interesting history, huge territory, huge population, and it's very popular as a civ possibility
Poland also has a decent chance, another very popular civ
Hungary, Tibet and the Hebrews are also very popular as civ choices, adding unique gameplay possibilities with interesting historical background
In spite that they are somewhat unlikely to make it in, the latter two because of religious controversies, Hungary because they included Austria this way
Assyria also has a good chance, I see no reason against them
If the Hittite won't be in, Assyria will likely take it's place
Mali and Phoenicia still has a chance, even though the Songhai and Carthage are in
Both Kongo and Morocco are very deserving civs historically, and the African continent still lacks civs.
As those two are popular enough, I would say they have a very good chance
I'm against modern civs, but Brazil is very popular
Hopefullly Firaxis will follow the trend of not putting in modern civs, but it still has a chance
All in all:
Very good chance:
Portugal, Poland, Zulu, Sioux or
Comanche (not both),
Khmer, Sumer, Hittite, Assyria, Indonesia, Morocco, Kongo
Less chance, but still an opportunity:
Hungary, Tibet, Hebrews, Mali, Phoenicia, Brazil