It seems Rockstar had planned to release the second trailer for Grand Theft Auto V this week, but due to the extreme weather, destruction and loss of power faced by most of New York, the release has been pushed back.
Rockstar published this comment on their website regarding the delayed trailer:
We are working on a second trailer - unfortunately Hurricane Sandy has derailed our plans somewhat but we will have something to show soon. It's hard to be precise as we have no power whatsoever in our New York office. We hope everyone else in affected areas is doing okay.