User blog comment:Master Sima Yi/Assassinews 28-02-'13 — Assassin's Creed IV: Black Flag revealed/@comment-6821378-20130303084129/@comment-77.45.54.119-20130303105144

We have already seen Russia, there's no need to retell that tale. We already know what's going to happen. And there's not much room for other ancestors.

Though if there was a game about Aquillus or Accipter... that's another story. Maybe not even a game, just something that's 100% canon.