Without a Dom4, I'd *really* like to see the Dom3 code become public domain

[Illuminated One]

Originally Posted by chrispedersen

allow code plug ins, similar to .dms but that changed more than weapons and spells. For example, allow a spell that created a permanent gateway between two provinces. This could be done by changing the provinces neighbors

A very nice idea.
However I don't think this could be taken to the point that you could cleanly add new mechanics into the game by using plugins.
In Temple of Elemental Evil every spell was a python script but the spell effects were still hard coded to a point.
You could change the damage of a fireball but adding a completely new effect was nearly impossible. Some ingenious people have done some like adding a bag of holding by storing it's contents in an external file or combining buffs on items that then gave them to the holder. However it was limited and buggy.