The hacker that has been snooping around GTA 5 files and folders discovered that the jetpack will come in the upcoming 1.13 update. The fellow even provides some evidence to his findings by sharing a screenshot of his discovery. You can view it here.
Ever since GTA 5 got released, many players were disappointed as the famous jetpack is absent in the game. However, their hope got reignited after discovering the Easter egg at Mount Chilliad, which reveals that the jetpack will be coming soon.
The weird painting, together with the assurance of the hacker, the jetpackās coming is inevitable. Of course, the folder is nothing more than a placeholder and should be taken with a pinch of salt.