Ottis Gibson will fill in for Donald as England's bowling coach in Sri Lanka. He leaves on Tuesday.
England have asked Allan Donald to make his short-term role as bowling coach a permanent one but Warwickshire have also asked him to join as a coach, while he has committed himself to provide commentary in South Africa at the same time England are touring Sri Lanka.
Gibson would be a forerunner for the permanent role should Donald opt for Warwickshire. Gibson, however, has said he would love to work with West Indies.
While the England role is obviously higher profile, Donald would be away from his family more than if he returned to Edgbaston, where he enjoyed much success as a player.
It is believed Donald is discussing both coaching roles while in South Africa during England's failed Twenty20 campaign. The team will fly straight to Sri Lanka on September 22.