That's indeed planned, unfortunately we have neither an ETA for that (most likely not before beta), nor an idea what kind of "games" we will implement exactly. Probably we will at least implement smaller games, like card games (could be quite funny to sit at a table in multiplayer and play poker with your friends), board games and most likely small videogames (playable on a tv for example) 
Sweet. I wouldn't mind having fun with any card game. I don't know how to play poker, yet could try learning. Be sweet to try messing about with solitaire, Blackjack, solitarire (standard & spider) for the hell of it. Any small thing works when inbetween builds & survivals. For the hockey & soccer suggestions being minor with a stick being able to push a puck/ball or being able to kick a ball object. No need for referees or official rules. Only simple basic implementation. I can imagine people making use of their already built stadiums for such.
Video games in RW would be interesting also. Computercraft from Minecraft allowed you to do so, same with command blocks. It seems silly, yet I can see it being a worthwhile feature to play basic mini-games, or ones people program into Rising World. I wouldn't knock the idea because it's a fun though.
Going to ignore Yahgiggle and crew's posting because I view it as mockery when I take into account how people added chess & other various sorts of mini-game sinto Minecraft. I guess they're unaware of how much fun it brings when wrapping up your session in these sorts of games. I guess you wouldn't know.....