hey there! big fan of your writing, and so very much looking forward to reading the rest you have in store for us! i do have a question: will the novels going forward be super heavily focused on our fave couple's struggle to conceive/have kids???

No. That would get boring real fast. I dropped a spoiler in an interview on Behind the Scenes that Hades and Persephone conceive Zagreus in The Good Counselor.

The Good Counselor will be the only book in the series that focuses the plot on those particular struggles. There are many other challenges ahead for our heroes.