the next big update is coming mid January. The main change will be a "dynamically generated map" based on islands. Its not random or procedural, basically we will make lots of different islands with distinct locations and each time the player starts a new game the set of islands that compose the map will be different. This will give the game more replay value and will let us create an easy framework for adding more content to the game (location/map wise). Once this update is done we will start working on the co-op mode
Also we will release a small holidays update very soon :)