I notice that some players refuse to move further when they clearly have no chance to win. It is happening also in WS&IM, where the game could be ended by a lack of action, but in this way they deny other players the victory.

My propose is: could we have the player disappear from the game if he/she doesn't move within the max time frame, instead of canceling the game out?

Possible players tailing him/her could be allowed one extra day after his/her cancellation.