Valve is working on a project referred to as 'TF,' which is likely related to Team Fortress 2. Tyler McVicker has indicated that new code confirms Team Fortress 2 is being transitioned to Source 2. A recent datamine revealed a mechanic specific to Team Fortress 2, suggesting that maps from the game are being ported to the new engine. However, the exact intentions behind this project, whether it is a remaster or a sequel, remain unclear. The project is still in early stages, and its future development is uncertain.