"Thanks to everyone that turned out for the #MondayBvSSpecialIMAXEvent screenings tonight! #BatmanvSuperman" Zack Snyder posted.
And no, the addtitional footage scene in the Batman Vs. Superman IMAX trailer will not be released as part of any other trailer or online (though it has leaked online).
"Batman v Superman: Dawn of Justice" has a March 25, 2016 release starring Ben Affleck as Batman, Henry Cavill as Superman, Gal Gadot as Wonder Woman, Amy Adams as Lois Lane, Laurence Fishburne as Perry White, Diane Lane as Martha Kent, Jeremy Irons as Alfred, Jesse Eisenberg as Lex Luthor, Ray Fisher as Cyborg with Callan Mulvey, Holly Hunter and Tao Okamoto in new character roles for the film. Justice League is to follow directed by Zack Snyder as well.