The Belgian, who scored his only world rally victory with Citroen in 2005, is one of six drivers under consideration for a 2014 seat with the French outfit.
Team boss Yves Matton said: "I'm already well advanced [in selecting drivers].
"You don't need to convince me of his [Duval's] talent, but I do not know of any rally driver who came back with success after so many years absence. Maybe Francois is the exception.
"Anyway, I'm interested to discuss with him. He can call me. I want to see if he's motivated before we would give it a test."
Duval said he would be interested in a full-time return to the WRC for the first time since 2010 would appeal to him if it was with the right team.
"There's a bit of a lack of good drivers in the WRC and I'm still young," said the 33-year-old.
"The idea is to drive with Citroen. I don't see myself coming back to driving with one of the cars that are lower down the scale.
"I'm not interested in doing one-shots anymore, when you come in with no experience and don't know the car or the rally."
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