The most prominent change is supposedly the look and feel of the Android OS, it has been said to be one of the most ugly and clunky interfaces compared to iOS by Apple. It isn’t exactly clear what all of the changes will look like in the new OS but it will definitely be cleaner. There have been some early shots of the new OS but the one that Phandroid has is a bit blurry and doesn’t really reveal anything.
Google is also reportedly working on adding built in Video chat to compete with Apple’s FaceTime in iOS devices. On top of that it appears that Google may add the ability to use Google Voice as a built in feature to make and receive calls over Wifi and cellular.
Another feature that may be in the works is support for YouTube’s new Leanback feature which allows you to rewind and fast forward video much like you can on a DVR at home. It will be interesting how they implement this on Gingerbread and how it will compare to how video works on iOS devices.
These details have not been released by Google yet or any for that matter concerning Gingerbread’s release. But we can safely assume that Gingerbread may not release till early next year with many devices still getting to Froyo.