Jump Festa '23 event announced that the SPY × FAMILY will have a second season and a movie in 2023.
The film will be an entirely new work with an original story. The manga's creator, Tatsuya Endo , is credited with the original work and original character designs for the film, and will also oversee it.
Tatsuya Endo the following image to commemorate the film's announcement:

Synopsis
In Spy x Family, we meet the secret agent better known as Twilight. For him, no mission is too complicated if the objective is to maintain peace. Because of this, Twilight works hard to maintain civility with the neighboring country, the fictional nation of Ostania. Your newest task is to investigate the life of Donovan Desmond, an influential Ostania politician. However, to successfully complete it, Twilight will need to infiltrate Donovan's son's school, Eden Academy. But more than that, to maintain a good disguise, Twilight must get married, have a daughter, and maintain the appearance of an ordinary family. Under the identity of Loid Forger, Twilight adopts the orphan Anya, a 6-year-old girl who has telepathic powers. To play the role of mother and wife we have Yor Briar, a mysterious assassin who keeps more secrets than Twilight and Anya could imagine.
The first half of the first season premiered on April 9th, while the second half premiered on October 1st.
Source: ANN