"Casey Stoner has a contract with Honda as test rider until the end of 2015," Ciabatti said. "There is the possibility that he will be back with Ducati as a test rider, but we need to wait until the end of the year."
Stoner retired from MotoGP at the end of 2012, and has operated as an occasional development rider for Honda ever since. The closest the 30 year old has come to a return to top-flight racing was contesting the Suzuka eight-hour race earlier this year. It is understood Stoner unsuccessfully offered his services to former team HRC Honda as a fill-in rider for injured Spaniard Danny Pedrosa this year.
Stoner was and still is widely regarded as one of the best raw talents on a MotoGP machine, having secured Ducati its first world championship in the current era a feat not even nine-time world champion Valentino Rossi could manage.
"Casey is a hero to Ducati, he won many GP races and the title in 2007," Ciabatti told media in Valencia. "Obviously he moved to Honda in 2011 but he is still in the hearts of all the Ducati fans, and has a great relationship with many Ducati people. "Let's see what the future brings he is under contract to Honda until the end of this year, but if there is a chance to do something with him, we would love to do it."
Meanwhile, Spaniard Marc Marquez topped the timesheets at the annual post-season test at Valencia this week, edging out Suzuki's Maverick Vinales. Danny Pedrosa was third fastest, while Vinales' teammate, Aleix Espargaro finished fourth.
New world champion Jorge Lorenzo finished testing in fifth, while Valentino Rossi's opening bid for an elusive 10th world title began positively, finishing seventh. Australia's Jack Miller ended testing 16th aboard his factory-spec Marc VDS Honda.
