Great end to the arc. Guts,Casca, and Puck got away, but it seems Farnese, Serpico, and Isolde will be following in behind them. Nina and Luca's character arcs seem to be over again, I like how Luca gave a monument for the "egg" and Nina chose to leave Joachim to find a path for herself away from weakness and sadness. All in all, this arc had a fairly positive ending in stark contrast to how the Golden Age arc ended.
But, if there is a dark hint to the ending it is the "re-birth" of Griffith and the Kushan invasion. Where is Griffith heading? My money is on to the newly vacated Midland throne and the now father-less princess.