The trailer features a powerful beat and rap that could possibly be the boys' next title track. The mysterious countdown on their website has also reset to T-45 hours.
The only information released so far is at the end of BTS' trailer, which announces the title of their next song, "O! RUL8, 2?" ("Oh, Are You Late, Too?"), and a release date of September 11.
Check out BTS' comeback trailer above!