Spoilers:
Poisoning is in the game but disabled until I write the dialog for it. To make it you’ll need to be good at chemistry and be on good terms with a certain farmgoer.
Ascending the throne is disabled, too, and I’m undecided on whether I want to re-enable it because it was a little dull as far as events went.
I was considering having one of her subjects sample the food until your trust with her is high enough, just as a way of getting more content in, but I don’t want to put off the last release any longer. I finished testing the poisoning path and aftermath this evening, so I’ll probably upload the final version tomorrow.