A location for the event, which is expected to be UFC 263, isn't set yet.
In December, Figueiredo (20-1-1) and Moreno (18-5-2) fought to an exhilarating draw that was considered one of the best bouts of 2020.
The fight capped off a memorable year for Figueiredo, the UFC's flyweight champion, who went 3-0-1 last year and was considered the consensus male fighter of the year. He won the flyweight title in July when he defeated Joseph Benavidez.
Both Figueiredo and Moreno are unbeaten in their past six fights.