I think that before adding anything else you should add a shiftclick function for items. I think the shark, once it dies, should not come back for 5 minutes or so, to add relief to killing it. Also I think that the raft should never move by the player but it should be constantly drifting adding the ability for SMALL islands to be swum over to. please no more weapons, don't add pvp, if you are going to add multiplayer only coop. and no story please no story.