LAS VEGAS--Sony Online offered up a few new tidbits today at CES about Kingdom of Sky, its new EverQuest II expansion pack that was just recently announced. Aside from the requisite new lands, quests, monsters, and so on, the biggest news for the thriving online RPG is the addition of player-versus-player combat. But then, all players will have access to the same feature through a downloadable patch released around the same time as the expansion.