I don't think the Busan concert is a good idea, it could bring more harm than benefit to the group, everything that comes about it is just a mess, the location, the facilities, too much people, hotels canceling reservations to increase the price, etc.
And I've read that Busan is competing against Saudi Arabia, which I don't think they can win against, just because they will drop huge money and connections.
After all of this, their reputation could be damaged due to being the face of the Busan Expo. On one hand, we have that the concert could bring a lot of issues and bad press, it's already happening. And on the other hand, if they don't win, they will be bashed by knetizens.
And because of this partnership, the enlistment talk has resurfaced after Busan's mayor mentioning it.
Like, I don't know what they can win doing this, an especial enlistment like it's being talk? Is it worth it? We will see, but I really hope it goes well at the end for BTS.