Wonder Woman Set Photos

This past Sunday set photos from Wonder Womans solo film were released and they say alot about the film and also raise some questions (which i'll get into later). First off we see that the time period is set during WW1 and also that Wonder Woman is part of the war effort as some sort of nurse or medic. Then we finally see Chris Pine as Steve Trevor whose Wonder Womans love intrest in the comics. Clearly the film is going to have a bit of a Captain America: First Avenger vibe to it. Now remember those questions i was saying these set photos brought up well for one does this mean WW(wonder woman) has been around longer than both batman and superman? Because we already know in this film universe Batman has existed longer than superman and Batman has some type of established relationship with WW. This brings me to my second question are they sticking true to the comics and making WW immortal as her race is in the comics is? None the less Wonder Woman hits theaters June 23rd 2017.