The Isle of Man speedster has yet to announce which colours he will ride in next season, with his current team HTC-Highroad set to disband.
Thomas was part of an eight-strong GB team that helped propel Cavendish to glory on Sunday, capping a sensational year for the 26-year-old, who also won the prestigious Milan-San Remo and claimed the green jersey at the Tour de France.
“Most of us there on Sunday are in Sky and good mates of Cav,” said Thomas. “He’s obviously been talking to them [Sky]. He wants to come, I think – I’m pretty sure of it.
“To be leading out the world champion next year would be really special. I don’t think he really needs telling how good it’d be.”
British Cycling performance director Dave Brailsford, who also runs the Team Sky squad, believe Cavendish’s world road race win was the result of one of the best team displays in the history of the sport.
Cavendish stole the headlines by becoming the first British male to don the rainbow jersey in 46 years, but Brailsford was keen to stress the importance of his team-mates who managed to control the peleton and deliver the ‘Manx Missile’ to the front right on cue.
“Everybody played their part but special credit must go to team captain David Millar for keeping it all together and that final lap by Bradley Wiggins was just incredible,” he said.