In order to amend the schedules in a bankruptcy, the case must be reopened. Whether a case is reopened is decided by the court. It's pretty much automatic for cases to be reopened for omitted assets unless the value of the assets is minimal or the person moving to reopen the case wasn't diligent in pursuing the assets (say, the trustee moves to reopen a case where the trustee was aware of the assets while the case was still open and simply didn't bother to take steps to secure the assets). There is no specific deadline for filing amended schedules upon the court ordering a case to be reopened but if nothing is filed for the court to process, eventually the case will be closed again. Courts don't allow cases with no issues and no assets to remain open indefinitely.
Answered on Sep 22nd, 2016 at 6:25 PM