Jump Festa '23 event announced that the anime SPY × FAMILY will have a second season and a movie in 2023.
The film will be a completely new work with an original story. The manga creator, Tatsuya Endo , is credited with the original artwork and character designs for the film, and will also oversee its production.
Tatsuya Endo shared 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 goal is to maintain peace. Because of this, Twilight works hard to maintain civility with the neighboring country, the fictional nation of Ostania. His newest task is to investigate the life of Donovan Desmond, an influential politician in Ostania. 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 marry, 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 with telepathic powers. Playing the role of mother and wife is Yor Briar, a mysterious assassin who holds 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

