I've been getting a bit more enjoyment out of the game now that Day-0 patch is out (what with the less crashing and coherent interface). However, one thing that's really really bugging me: if by some random chance my spouse gets killed there is nothing else to be done, forever, your dynasty is simply over. You can either restart or just hope your Sovereign is immortal I guess but I'm not really putting much stake in that idea 
So my first non-bitter comment here: Divorce/remarriage plx, ASAP. I can't imagine it being all too terribly complex to add in - if status of spouse = dead then allow new spouse would be the most simple fix. As is my current game I am only 21 and will never, ever be allowed to have kids. 