Who was the "idol couple" Dispatch planned to expose on January 1st?

Article: "I hope it's an idol couple that Dispatch exposes.."

Source: Pann

1. [+252, -11] Unless it's my idolㅋㅋ
2. [+213, -5] Just be quiet everyone..
   
3. [+191, -23] Honestly, the wait is too long at this point so it's not fun anymore...
4. [+63, -17] No matter how you look at it, it's definitely IU..
5. [+47, -79] The best scenario would be Jungkook Lisa
6. [+43, -1] It's shocking Dispatch is planning a concert now...that includes BTS and Twice? 
7. [+37, -6] Yoona Junho
8. [+30, -38] Looks like its definitely BTS since they have to enlist soon anyway..
9. [+29, -12] BTS couldn't even attend other award ceremonies but they're going to a D-pae concert..?? What does Dispatch have on them?
10. [+24, -1] It's definitely BTS..
11. [+23, -1] I'm cursing Dispatch right now because of the damn wait...it's too long
12. [+17, -11] Dispatch planned on exposing BTS for sure. Kim Seon-ho's dating pictures were exposed already when his shield article came out so the only one left is BTS but it looks like D-pae is shielding them hard...