Water is one of the most requested features. See https://trello.com/c/cQ3O2eeT/22-water-tiles for details.
Social features on the website are under active development. This means each game gets its own page, with comments. Games can be searchable etc. I hope to create a nice community with more communication and feedback.
Games will also be indexed by google, attracting more players based on the title and description of the game.