While we are still at least a few months away from then next major public release of Windows 8, new shots of the touch keyboard have been leaked. The latest leak comes from Winunleaked.tk and shows a couple new options for the keyboard that are not currently available on the developers preview.
The one new feature besides a slight design tweak is that you can now enlarge the keyboard. This minor update will make it easier for those who are not used to a software style keyboard to better adapt to the new interface.
Current WDP Layout
Updated Keyboard
Is this a major update, certainly not, but it does show that Microsoft is considering usability with all aspects of Windows 8.
Microsoft is currently scheduled to release the Windows 8 beta in late February. At the current time, speculation has included a showing of Windows 8 at CES but what all that might entail, if it is even shown, is not currently known.