One major thing that would be nice to see in ORK 3 would be some kind of way to tie custom data to Combatants/Items/Abilities etc. For example custom development system, or unique game-play associated info data.
I'm not sure what would be best way to implement this. One idea that comes to mind is if there was a generic class that custom script could be interfaced to or inherited from when making a plugin. (Kind of like Ishortcut class)
Each of the major ORK entities (Combatant/Items/Abilities/StatusValues etc.), would have a list of this custom data shortcuts that plugins could register their instance with.
The plugin custom data shortcut would be responsible for wrapping their public variables and settings to work with ORK Editor, and ORK editor could display this list of custom settings at the end of Entity page.
I hope this all makes sense and is possible in theory :D
The end result would be ability to bind the custom data to entities without overwriting the source code.
I guess this would also create a need for more callback functions for common functions in the Entity code.