We already knew that Command & Conquer 4: Tiberian Twilight would require a permanent Internet connection, but now EA also revealed that the game will ditch support for multiplayer gaming via LAN or dedicated servers:
The reason being, as lead designer Sam Bass put it, is because of the global player progression system. This system is "across single-player, multiplayer and skirmish and all the information is stored in a server. So if you go to another machine -- friend’s house, Internet café -- whatever, you can login with your profile and all the stuff you’ve unlocked is accessible to you there. It all lives on a server so you can’t really do dedicated servers with that."