User blog comment:Finzilla101/It's your blood that's red like roses/@comment-187.107.165.210-20131120005730/@comment-7468226-20131120033326

Black trailer is 100% confirmed for before, as Weiss mentions that the White Fang were raiding trains; This is exactly what Blake was doing in the trailer, and admits she subsequently left the White Fang. White Trailer soesn't need a chronology to it, really. It doesn't have a bearing on very much IMO, other than Weiss' scar.

In fact, I think the only trailer where chronology maters is Yang's, as we see Roman Torchwick, have a mystery girl that Monty has confirmed will show up again, and Ruby and Yang meeting.