It is up to you to discover the answers.
We of course will expand upon this in the forums, as we will be implementing player suggestions over the next few months, but this is the minimum that we will deliver within the first three months of development. The answers are waiting.
Sleep system
Trap system
Bow and arrow (combat and crafting)
Aquatic animals, yes including sharks!
New Items
New crafting recipes
More island details
Keybinding
Better server handling (saving, loading, optimization, etc)
Dedicated server
More characters visual on multiplayer
Game story enhanced and evolved upon
Bug fixes (This is early access after all!)
Optimization (Very important, please help us with this!)
FORESEEABLE END?.