1) Free Voice Guided Navigation
2) Improved Music player with more equalizer options
3) In camera Smile Detection, Touch focus
4) HD Video Recording or atleast 720 P video recording
5) Fixing the below mentioned problems that I consider as bugs

a) The speaker sound is still low compared to other high end Nokia Phones
b) Support for all Nokia based headset along with navigation keys should work.
c) Better memory usage.