Court filings show that Robert Durst still has a plea deal with federal prosecutors in New Orleans but won't sign it this year.

He had been scheduled for a change-of-plea hearing Thursday on a weapons charge.

But prosecutors and defense attorneys told Judge Helen Berrigan in a joint motion Tuesday that scheduling conflicts rule out all dates before a Jan. 11 trial date.

Berrigan rescheduled the trial for March, noting that will let both sides set a new date for the re-arraignment and plea agreement.

The weapons charge has kept Durst jailed in Louisiana since March, though he waived extradition to Los Angeles. There, he's accused of killing friend and former spokeswoman Susan Berman.

His lawyers have said Durst is eager to prove he is innocent in Berman's death.