As for modding for the CE2, it'll be much friendlier than it is now. Looking on ModDB there's only a couple of Crysis mods because, while people are extending the game by adding behaviors, scripts, custom nodes, and so on, there's very few that currently have the resources needed to do a total conversion. We're lucky in being chosen as one of the few teams to get the preSDK but despite that, there's quite a bit of groundwork being laid down at the moment that will be very useful in the future. Patch 1.2 is comming up which is primarily to add support for modding. The SDK is comming soon as well. People are adding features with scripts and behaviors constantly both on our team and others, and all this work is laying a solid foundation for future work on the game. Many of the troubles we've been having are based on nothing more than the fact that nobody has ever done this kind of stuff before. There won't ever be a "Make Mod Now" button, as Criminal keeps reminding us, but it will get easier as more is figured out by the modding community.