The 30-year old attacking midfielder has starred for the Scottish champions-elect this campaign, scoring 18 goals in 24 appearances, prompting ex-Rangers ace Naismith to suggest he would be looking at a Scotland comeback.
Commons stepped aside from international action with Scotland in May last year to focus on his club football and it appears to have paid dividends such is his form in 2014, of which Naismith noted.
"Only he can say how big the effect has been," said Naismith at the launch of the PFA Scotland Player of the Year Awards on Wednesday night when quizzed on Commons.
"For every player there comes a point when the body is changing, they are getting older, they have to make a big decision.
"Do you carry on travelling all around Europe, pushing your body to the limits? Kris's performances in the first half of the season and his goal return for someone who is more of a midfielder than an out-and-out forward has been great.
"I'm sure it's a decision he'll stick by and think it was good."
He added: "The manager (Gordon Strachan) must want him and Kris must want to come back. Then you have competition for places, it's not easy. I certainly think he would be an asset.
"We are all pushing for the same goals and if he can help, that would be great. I don't think it would be that big a deal so long as he is performing well and doing well for the Scotland squad in general."
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