Well idk if your talking about part 1 or 2.
But if your talking about part 1, i would say sometime next month or a month before part 1 comes out. Now if your taking about part 2 i would say sometime next year because thats when the movie comes out. Im pretty sure there gonna show the part 2 trailer at the 2012 MTV movie awards next year. Hope this helps :)
posted over a year ago
Ι was talking about part 1...In the beginning i thought it would be thre trailers but as it seams it's gonna be only two..Anyway i hope it won't take too long.