I would be contempt with messages, and adding units of given nation/independent to certain province. Items, gems, sites would be a bonus, but no more than that. I don't think it would actually be possible to script assasinations like that for any real purpose. While other commands would be nice, they would only have few spesific cases in which they would be useful.
I'd also like to get my Dominions III as soon as possible. I want to try out the new nations.
EDITED the end of the first paragraph. The ending was confusing.