However, both Barnett and Coventry boss Chris Coleman have previously hinted a permanent transfer could be a possibility in the new year.
The ball seemed to be in the hand of Baggies head coach Di Matteo, who is currently in the market for a new centre-back with Abdoulaye Meite set for African Nations Cup action after Boxing Day.
But asked whether bringing Barnett back from his spell at the Ricoh Arena could plug the gap left by Meite's departure, Di Matteo told the club's official website: "We probably won't bring him back. I think he's happy where he is.
"He is playing week in, week out and I don't think he wants to come back and not play."