According to Laycock in a tweet, "Been talking to @notch today about him hopefully coming over for mocap for the next @totalwar game. Would be sweet :D"
At first, the question would be, what would Persson be doing in the game? However, the next question that immediately follows is, "Wait, what is the next Total War game about? There's a new Total War game coming?"
It'll be interesting to see what era the next in the series will focus on.