[BurningFrog]

Well, I think we have next to no information about language development for 195,000 of those 200,000 years, so we don't a much reason to believe anything.

I'd speculate that since language skills are important, evolution would have worked to increase them over that era.

[bloak]

I don't know much about human evolution and history... However, if language skills evolved after humans left Africa then I'd expect them to have evolved a bit differently in different local populations. Yet innate language skills seem to be the same everywhere. So I would guess that innate language skills haven't changed much in the last 100,000 years. So I would guess that people have been speaking languages like today's languages (in all their glorious variety) for the last 100,000 years.