Well, yesterday the Koreans showed a
supersonic anti-ship missile similar in appearance to the Brahmos/Yakhont (from 1:38 in the linked video) . This, in addition to the
Hyunmoo 4-4 SLBM, a long-range bunker-busting ALCM and the Hyunmoo-4 SRBM (with a 2.5-3 ton conventional warhead) (all shown in the linked video below).
Coming to the supersonic missile, as per
Korean sources, its dimensions and max. range (500-550km) are similar to the Brahmos NG. And we are yet to test the Brahmos NG. If true, it isn't doubtful anymore; they will (or rather do) have a Brahmos NG before us.