The New York state court system is making elaborate preparations to cope with the unprecedented departure by Nov. 24 of hundreds of seasoned employees — an exodus that could bring months of turmoil but pay off in a long-term overhaul of operations, increased employee morale and a more diverse workforce.

Judge Lawrence K. Marks, administrative director for the court system, acknowledged that there could be some “speed bumps” as the courts adjust to an early retirement incentive system intended to take some of the pressure off the state budget.