The Celtic midfielder announced last week that he no longer wished to be considered for Scotland duty because he wanted to concentrate on his family and club career.
His decision has been respected by Scotland's managerial team but McGhee thinks boss Gordon Strachan may approach Commons next year to offer him a return to the squad.
Scotland still have a number of games to play in their doomed World Cup qualifying campaign but will then turn their focus to the European Championship in 2016 and McGhee hopes Commons will be involved.
"I could see Gordon being proactive in a year before the next qualifiers," McGhee said in the Daily Record.
"If we think Kris is an important player who can help us then we have every right to bang on his door.
"And if he says no, he's still not ready, then nothing is lost. Gordon has left it open to him, which is important.
"Kris played very well in the Scottish Cup final and I was left wishing he hadn't made that decision. But maybe when things are better in his mind he will come back."
Commons' pride and ambition has been questioned by SFA performance director Mark Wotte, but McGhee says the player does not deserve to be criticised.
He said: "Kris and any player is within his right to make that decision. He knows his mind and his circumstances."