The latest Batman v Superman: Dawn of Justice trailer will premier during fall finale episode of Gotham next week. As the two largest superhero camps DC and Marvel battle via their proxy tv shows. We expect possibly a few more cross promotions as we near the March 25 release date for the much anticipated superhero film.
We have no other details about the “sneak peek.”  Although the phrase sneak peek sometimes refers to a clip vs. a trailer.  Now that would be pretty great.  The YouTube quote reads “Catch an exclusive sneak peek of Batman Vs Superman in the Fall Finale of GOTHAM this MON at 8/7c on FOX!”  DC’s Gotham fall finale airs Monday, November 30, at 8 p.m. on FOX.
via Slash Film and YouTube

Batman V Superman Trailer