Something new to do with Tony Hawk's Pro Skater has been being teased over the past few days. An official countdown on the website seems to indicate that the project is Pro Skater 3+4. Further evidence of this can be found in the source code,

Although recent rumors and teases point to Tony Hawk's Pro Skater 3+4's existence, one image essentially confirms it.

Tony Hawk himself previously revealed a Pro Skater 3+4 remake had been in the works at one point following the success of Tony Hawk's Pro Skater 1+2. However, plans were reportedly scuppered when Activision merged developer Vicarious Visions into Blizzard, turning it into support studio for the Diablo franchise and other Blizzard games.