I love the idea of Anne having children.
One of the ironies of Henry's court is that many courtiers considered Anne more attractive than Catherine Howard. Anne wasn't really Henry's type, being tall and swarthy (if blonde) with an hourglass figure, where Henry liked them short, pale, and boyish. But for looks, her only real drawbacks were her apparent age - she looked older than 24 - and her long nose, but that was considered more a sign of royal blood than a flaw. No contemporary writer mentions any other physical flaws, and especially not the pockmarks that land so many actresses who play Anne in the makeup chair for hours.
She did have other drawbacks. She was uneducated (so much so that she didn't recognize the courtly traditions, which is why Henry's first meeting with her was such a disaster), she only spoke German, and she was said to not have the best hygiene - but the last would be a rich complaint coming from Henry, whose scrupulous cleanliness couldn't compensate for the fact that his leg ulcers were so foul-smelling that courtiers could tell how many rooms away he was from the smell.
Did you know that Anne died very young, probably of breast cancer? She was only 41 years old. Did you also know that women who are genetically prone to early breast cancer may develop cancer during or just after pregnancy? Just in case you wanted to get rid of her in a plausible fashion...