A pretty credible source who has brought out a number of leaks in the past for GTA 5 that came true, has another new leak for the game. According to the source, it seems that Rockstar is interested in bringing out a new update focused on flight.
The source comes from ecb2 from Reddit in which he states that an 1.16 update for GTA 5 will include a Flight School addition. This update will contain 10 new solo missions heavily focused on flying. There is said to be missions that include combat maneuvering, low-flying challenges, formation flying and more.
Additionally, there will be new parachute bags and reserve parachutes. The source does not specifically say how the reserve parachute will come into game other than if your first chute doesn’t operate correctly or if the player wishes to try something more creative in precision dives.
Lastly included in the 1.16 update for GTA 5 is four new vehicles. Three of these vehicles are planes or jets while the last will be a topless roadster known as the Coquette Classic.