TimeSplitters Rewind is an upcoming TimeSplitters fan project being developed by a team of fans for PC using CryEngine 3. The project is being led by Michael Hubicka of the 100k Strong for TimeSplitters 4 Facebook group that previously unsuccessfully lobbied Crytek to continue development of TS4. Crytek UK has officially given their blessing for the development of the project and have allowed the team to use the original assets from the original series, though they have opted to build the game up from scratch, drawing elements from the three official games. 1
The game has plans for a multiplayer mode facilitating 8 to 16 players, either online or by LAN. All 300+ characters from the games, along with the numerous weapons and maps, are being remade for inclusion. 2 Hubicka confirmed that Pantheonyx will also be working on the campaigns from all 3 games in the series once Multiplayer is complete, though it is very far out.
The developers will be accepting early alpha testers on a strict criteria in the coming weeks. The game will be free to download and is expected to launch sometime after 2016. 3
There is a possibility that TimeSplitters Rewind will be released on PlayStation 4 as they were never given the no-go.