Despite being a regular member of the Belgian national team, the 21-year-old has not been able to force his way into the Blues squad this season.
He is currently on loan at German outfit Werder Bremen, but Patrick de Koster has claimed that the winger will rejoin the Premier League outfit next season.
De Koster told the London Evening Standard: "The conversation was very positive. They are pleased with his progress and think he is ready to become part of the first team.
"The only problem is there is still no clarity about who is head coach next season."
It is understood that Bremen are keen to keep the talented midfielder.