A batch of images posted by Gadget Helpline has revealed some of the features that we can expect to see in Android 4.4 KitKat. As these images were taken on an Android phone running an older build of Android 4.4, the version is still shown as Key Lime Pie at many places.
Also this being an older build of Kitkat, some of features can be changed or removed before launch.
Here is a look at some of Android 4.4 features:
Native printing support with print to PDF option as well
Some kind of payment integration, probably related to NFC
Slightly tweaked system apps like dialler and messaging apps etc.
New photo editing options including new effects
Pre-loaded Drive, Keep and Quickoffice apps
Take a look at aforementioned Android 4.4 features in this image gallery (image credit: Gadget Helpline)