Essendon legend Tim Watson says Saturday's Grand Final could have an impact on whether the AFL Commission decides to go ahead with its proposed rule changes for the 2019 season.

Suggested changes from the AFL's competition committee include expanding the goal-square to 18 metres in length and having six players per team in every third of the ground at centre bounces, however speaking on SEN, Watson says may need to reconsider.

"Were the AFL Commission there you think, in numbers?" Watson said.

"Do you think they need to have a re-think about the proposed changes to their game?

"We have just witnessed one of the great Grand Final’s in living memory.

"You walk away from that game and there is nothing wrong with the game. Do they need to have a re-think?"

West Coat's win over Collingwood on Saturday has been widely applauded by fans as one of the all-time great contests.