I have read about 25 of your books and loved them all, especially the last kingdom series. My cousin just bought “Waterloo” at my recommendation.
I’m sure you have writing projects backed up, but I have suggestions.
Finish the Starbuck series.
Books about Tours 732 and the Siege of Vienna 1683. And a series about the wars of the Roses, maybe with brothers or father & son on opposite sides.
I suppose I’d keep you writing 18 hours a day!
~Bob