Crash has had quite the resurgence as of late with the fantastic trilogy pack and the great Crash Team Racing, until Activision killed the game with wholly unneeded micro-transactions.
I figured the other Crash games released during the PS2/Wii era were official Crash games, but since none of them technically used the 4 in their title so this can still work.
Hell, erasing all those games from the current timeline would probably be for the best. The leak itself comes from a rating for the Xbox One version in Taiwan.
Crash 4 is expected to be officially announced this coming Monday as a part of ongoing Summer Game Fest. With an Xbox One version announced one can assume other current platforms will also get the game.
Game description:
Crash is relaxing and exploring his island in his time, 1998, when he finds a mysterious mask hidden away in a cave, Lani-Loli. The mask is one of the Quantum Masks and apparently knows Aku-Aku, Crash’s mask friend! With the Quantum Masks returning and a Quantum Rift appearing near our heroes, they decide to bravely head through to different times and dimensions to stop whoever is responsible.