Banner Lord mod came out a few weeks ago. It's not on workshop yet though.

If they pulled it off it would be great, however it would also spawn one of the most insufferable fan bases of all time.

If you found that interesting you should also read, "Imperialism: the Highest form of Capitalism," by Vladimir Lenin.

Do they though? People might get mad at you if you try to write about the real world experience of people very different from yourself (especially if you don't do a good job). But do people get upset about fantasy? Again I can't think of it happening except when it was because of something genuinely offensive.