The Irish skipper is still undecided about his plans for the next three months but his current scoring form makes him an attractive option for Paul Lambert at Villa Park and Everton's David Moyes, as well as Chris Hughton at Norwich.
Former Spurs boss Harry Redknapp, who has a long history with Keane, could also do with some help at Loftus Road.
"It's not something that I've sat down and thought about much." said Keane.
"Of course, I do miss the Premier League and I watch the games every week on Fox Soccer. I do miss it, but who knows," claimed Keane.
His loan spell at Villa Park last season produced three goals in six games and proved that at that point, Keane was more than capable of holding his own.
Keane will make a decision after his second successive MLS Cup final on Saturday, against Houston Dynamo.