Activision is working on a new Tony Hawk game according to Polygon. They write that it is even confirmed by Activision. A representative talked with them and said “Activision can confirm that they have something in the works with Tony Hawk, more info is coming soon.”
The first Tony Hawk game launched in 1999. Tony Hawk was a skateboard simulation where the player was able to perform stunts and skateboard tricks. There is no info yet for which platform the game will be developed.