Well it looks like we will have Gal Gadot as our Amazon Princess for more than the (now delayed) Man of Steal sequel (Batman Vs Superman). Gadot revealed to Israeli talk show "Good Evening With Gai Pines," that she has signed a three pictured deal with Warner Brothers. Those three pictures include the Man of Steel sequel. To go one step further that deal probably includes a solo picture and maybe a Justice League movie. At this point it is all speculation.
Though the Man of Steel sequel was delayed, she did reveal that she does begin shooting this May on the picture. So the film is not as delayed as we thought.