Question: Does East remain in the same position after each game?

Answer: No, after the player in the East position rolls the dice to break the wall, they place the dice to the player on their right. That player will then becomes the new East position for the next game, and they roll the dice to break the wall, continuing the rotation in this manner for subsequent games.

Source: Mah Jongg Made Easy 2024, page 9 last paragraph