The 68-year-old has suggested that the Poland striker could be on his way to the Allianz Arena next season
The Poland international has repeatedly implied he will leave Signal Iduna Park at the end of the season, with the Bavarians reportedly leading a chase which has also included the likes of Manchester United and Juventus.
And after ensuring Dortmund's incredible run to the Champions League final ended in glorious failure, Heynckes intimated Lewandowski could follow Mario Gotze to the Allianz Arena.
"We know Mario Gotze will be joining us and i don't think Lewandowski will be hanging about too much either," he told reporters.
After his side's final defeat, Mats Hummels admitted the Dortmund players are aware Lewandowski wants to leave the club, but hopes they can find an able replacement.
"We know that Lewandowski wants to leave and we're sorry for this," he told Mediaset.
"When he came here three years ago he was only a less known player and we're proud and happy for him. We can only hope a new Lewandowski can arrive at Dortmund."