Manhattan prosecutors on Wednesday signaled that they might seek to indict Harvey Weinstein on new charges, saying they were vetting allegations from people who have accused him of sexual assault in recent years as they prepared to retry him after his 2020 sex crimes conviction was overturned.

Prosecutors did not say how many accusers they were interviewing or provide details of their allegations but said they were reviewing which of the accusations fell within the statute of limitations.

At the hearing on Wednesday in Criminal Court in Manhattan, Mr. Weinstein, 72, entered in a wheelchair, dressed in a dark suit and white shirt, holding a large tan book under his left arm.

It was the second hearing since Mr. Weinstein’s conviction was overturned last month. In a 4-to-3 decision, the New York Court of Appeals agreed with Mr. Weinstein’s lawyers that the trial judge who presided over his 2020 case had erred by allowing prosecutors to call several accusers as witnesses, even though their allegations had not led to charges.

Mr. Weinstein, a former Hollywood producer who was convicted of sex crimes against two women at that trial, had been serving a 23-year sentence. At a hearing earlier this month, Manhattan prosecutors said they planned to retry him.

On Wednesday, Justice Curtis Farber, who is presiding over the case now, said if prosecutors convene a grand jury to seek an indictment on new charges, the court and Mr. Weinstein’s legal team must be given notice.