The title for the final Evangelion film was announced back in 2012 as Evangelion Shin Gekijōban :||, or Evangelion: 3.0+1.0.
Khara, the studio behind director Hideaki Anno’s new Evangelion films, confirmed in April 2017 that the next Shin Evangelion project is in production.
The first three films in the tetralogy, Evangelion: 1.0 You Are [Not] Alone, Evangelion: 2.0 You Can [Not] Advance, and Evangelion: 3.0 You Can (Not) Redo, debuted in 2007, 2009, and 2012 respectively.
Tatsuya Kushida, the films’ art director, revealed an image board for the final movie in July 2017.