This image shared by Filippo Biga shows that popular dock coverflow effect on all the springboard icons. It is certain that many are looking forward to an iOS 7 jailbreak, but tweak and theme developers need some time to update as well to support iOS 7 as well. Cydia in iOS 7 will certainly be coming in the next few months as many of the exploits have already been determined, it is just a matter of time to make the iOS 7 jailbreak available for the community.
Are you planning to jailbreak iOS 7 when available? We are nearing Day 100 of iOS 7 availability.