Ideas for custom ROM

Hello!
HTC recently released the Lollipop to our model.
I'm going to make a custom rom.

Assumptions:
- Base on CyanogenMod 12.1
- Root
- Stock kernel
- Remove some HTC apps
- Optimize
- New theme, better UI
- 4K@60fps recording (I dream but try do it)
- CPU and GPU Overclock
- Better memory management
- NFTS partitions support
- Tweaks
- Fast and stable


I realize that some of my assumptions cannot be made but the most we can do.


What do you think?
Write your suggestions what would do well to change.