Now that you finished the Last Kingdom series, your next project should be to contract with the CS Forester estate to finish Hornblower and the Crisis.  You loved Hornblower, which inspired the Sharpe series, and your knowledge of Trafalgar and the Napoleonic wars in Spain to fill in historical details.  Forester gave it a great start; you could give the story a great finish and pay respect to an author who inspired your own work.  Please consider the idea.

Walter