Just a quick heads-up; a couple of SimCity 2013 Developers are currently hosting a AMA (Ask Me Anything) session on Reddit.
Linky: http://www.reddit.com/r/IAmA/comments/14umm1/we_are_the_simcity_dev_team_from_maxis_amaa/
Basically, register an account @ reddit and post questions. If they find them interesting enough, they'll answer them in a reply.