According to a theatrical pamphlet for the third film, it has revealed the title for fourth and final film adaptation of Gainax’s sci-fi-drama anime series Neon Genesis Evangelion.
The film is titled Shin Evangelion Gekijō-ban : || and it slated for 2013 in Japan. The symbol used at the end of the title is called the repeat sign which is a musical sign that indicates a section should be repeated. [Wikipedia]
For a meantime, below is a 6-minute preview of the third film, Evangelion: 3.0 You Can (Not) Redo that premiered on November 17 in Japan.