Im curious about why future Rogue would kill Sting. Because the current day Rogue seems to cherish and wants to protect his friend. So im guessing something must have happened to him, for him to just turn and kill Sting without hesistation for his power. Since Natsu is the only one who knows this right now, im curious if he will tell Sting or Rogue or just keep it to himself. Share Your thoughts on how this whole Sting/Rogue relationship will turn out in the future and why it did the way it did in the already future?