The Italian has endured a miserable season, languishing in 17th in the rider standings while his team-mate Casey Stoner competes for the world championship.
Having already agreed to cancel his contract for 2009, Melandri said he could be replaced sooner after failing to finish in the points in the US MotoGP at Laguna Seca.
"I'm just waiting to see what I have to do. I have a contract with Ducati until the end of the year," he said.
"I'm a Ducati rider. If they want to stop with me then I have to do what they want, so I just have to wait."
Melandri said he was disappointed with his result in California, having worked his way from 15th on the grid to 9th, only to crash.
"I hit a marker or something going into turn one and my hand came off the handlebar, so I couldn't get the bike turned," said Melandri, who remounted to finish 16th.
"I took a heavy blow to my hand in the crash and needed a couple of laps to get back into the race because I wasn't sure how bad the injury was. The pain started to subside eventually but I was way back, lapping alone.
"I'm disappointed because after the first two or three laps I had a good pace together. It's a shame because it's another potentially good result ruined.
"I'm particularly sorry for the team because they have made a fantastic job and they deserved a good result."
Having already agreed to cancel his contract for 2009, Melandri said he could be replaced sooner after failing to finish in the points in the US MotoGP at Laguna Seca.
"I'm just waiting to see what I have to do. I have a contract with Ducati until the end of the year," he said.
"I'm a Ducati rider. If they want to stop with me then I have to do what they want, so I just have to wait."
Melandri said he was disappointed with his result in California, having worked his way from 15th on the grid to 9th, only to crash.
"I hit a marker or something going into turn one and my hand came off the handlebar, so I couldn't get the bike turned," said Melandri, who remounted to finish 16th.
"I took a heavy blow to my hand in the crash and needed a couple of laps to get back into the race because I wasn't sure how bad the injury was. The pain started to subside eventually but I was way back, lapping alone.
"I'm disappointed because after the first two or three laps I had a good pace together. It's a shame because it's another potentially good result ruined.
"I'm particularly sorry for the team because they have made a fantastic job and they deserved a good result."
