We are currently porting the game from Unreal Engine 3 to Unreal Engine 4 and basically have to redo pretty much everything. With the current engine we would just be running into more and more dead ends because of technical reasons, so we take this effort to be future-safe. Which also means there won't be any improvement on the current version for quite some time.

So step one is getting the new game (on UE4) as it is on UE3 currently. After that we go on adding the features like steam support, ranked matches and stuff. The port also includes getting support for Linux and Mac.