3) I don't think spell modding has changed from DomII. I don't know how much it will change, or when. I think at least modding existing spells so that they become national, researchable spells is planned.
Yep, I think that we will see many new commands for spell modding in the upcoming patches.
"Training is principally an act of faith. The athlete must believe in its efficacy: he must believe that through training he will become fitter and stronger, that by constant repetition of the same movements he will become more skillful."