I hear you, dynasty mode needs more love, it has a lot of potential. However, every such job that you describe would basically be a new game, that must be interlinked with the main game in some meaningful way, and this I cannot hope to do in any good and maintainable way :) I would rather make it so that you can control a Family, and then spin the world in various ways to help make your family more successful.
The next update adds some diplomacy features, and it adds the rather nice effect that the emperor will have an impact on how other empires view that empire diplomatically. I also want to create feuds between families, that will also create some more dynamics for dynasty mode.