TVXQ vs BIGBANG vs Girls' Generation Full Group Reunions

1. TVXQ reconciles with JYJ and makes a comeback as a full 5-member group
2. BIGBANG makes a comeback as a full group, including Seungri and T.O.P
3. Girls' Generation reconciles with Jessica and makes a comeback as a full 9-member group
Which one do you think is most likely to happen?