'Breaking Dawn – Part 2' trailer to premiere on Wednesday!

Summit has just announced that a new The Twilight Saga: Breaking Dawn – Part 2 trailer will arrive in just two days.

A sneak peek will be released tomorrow (Tuesday) at 8:30 AM ET. The full trailer hits Wednesday at 8:30 AM ET.

source

Also, more info from MarketWatch thnks to Gossipgyal for the tip  
A 10-second sneak peek of the teaser trailer will be available for download via EPK.tv at 5:30 AM PDT/8:30 AM EDT on Tuesday, June 19, 2012.

 Following the release of the first-look, the full teaser trailer will be made available for download on Wednesday, June 20, 2012 at 5:30 AM PDT/8:30 AM EDT via EPK.tv.