Which civs from Late Antiquity (3rd-5th centuries) do you think should be added to the game?

I have an idea for a Micronesian civ, and its campaign is technically in the 1600s, that being Isokelekel, though the oral legend puts it in 1500, well within the AoE2 timeline. However, even if it’s 17th century stuff, it’s just Micronesians vs Micronesians, and they’re primitive enough to fit in a medieval game.

Don’t worry, I came up with a concept for them.