This is an old thread but I've recently started playing Sims Medieval again and had my Bard do the Brave New World quest after the loss of his beloved wife, Empress Rhiannon. The bard is now the Monarch of his own Kingdom but upon going back to the original kingdom, the Brave New World Quest isn't available. I tried pulling up the cheat window and using 'reroll quests' and though that gives me quests that have been completed previously, Brave New World hasn't shown up yet. I'm thinking that since it's a 0qp quest that it probably won't regenerate after it's been played once.
On a side note, the current Empress was the daughter of the former queen and when she took the throne her father then moved back to the Tavern with her two brothers.
Yet even though she is now the Monarch, when I click the go home arrow, she goes to the Tavern not the Castle!!!
It's a bit annoying having to click on the castle directly for her to return there, but I was happy to see that both her father and brothers show up in her family relationship panel.
And her brothers still wander about the kingdom.
But with her father leaving that kingdom, I was hoping one of her brothers would succeed him as bard, but since they were born to the bard after he married the monarch, they are both princes and apparently ineligible to inherit their father's position.
On another side note, if you do want heirs for both heroes that you want to marry to each other, have them have a child before the marriage which will live with the mother and be her heir.
Once the two heroes marry, choose the father's dwelling and then the next child will be his heir.
I did that with my physician, Claire, and wizard, Myrik.
Their first son is Lil' Bloodletter, Cyrik, who was born prior to their marriage.
Their 2nd son is Lil' Spellcaster, Dyrik, who was conceived after the wedding.