There hasn't been any exact या confirmed तारीख, दिनांक yet, but Divergent's official tumblr page did post about "something big coming" at the एमटीवी VMAs on Sunday (August 25th) which has been confirmed to be "the exclusive first look at Divergent!" and with the short पूर्व दर्शन that's been released now too I think that this "something big" is most likely to be the fuller trailer!