As of now, the only remaining rival of BTS is Adele.
BTS brought its biggest rival in Korea, IU, into submission when IU asked Suga to give a song, although IU immediately rebelled by cutting Suga's lines in a video perf.
And its biggest rival outside of Korea, Ed Sheeran, kind of submitted to BTS ' power when he gave the Permission to Dance song.
With both the biggest threat from home and away now kind of , at least, docile against BTS, it has no rival on world save maybe Adele, whose album date gets delayed again and again.
Do you think they will continue to rule the world for a long time, or do you think they will implode?
Some people are in the school that you need rivals to remain coherent, while I am not in that school I think Rivals just sap your energy.