- Develop a custom ai for 2e character
The AI is mostly native code (C++) AFAIK, so it is unlikely that you'll be able to edit that now.
- The ability to customize the class-name
Editing Mods\%yourMod%\CharacterCreation\ClassPresets\*.lsx is the way to go.
- Unrestrict gender-specific appearance options(hairs,faces,voices,~ect), this simply because it'd be funny.
The easiest way is to just copy-paste all Female options to the Male list (and vice versa) in Mods\%yourMod%\CharacterCreation\properties.lsx