I don't have the specific date or chapter for when the golden age arc ends. You could try asking manga enthusiasts on social media or in manga-related groups. They might have the answer you're looking for.
The Berserk manga definitely picks up after the Golden Age. It delves deeper into the complex world and the struggles of the characters. The story gets more intricate and compelling as it moves forward.
For a pacifist inquisitor in Dragon Age fanfiction, start with their backstory. Perhaps they come from a region that has suffered greatly from war, which led them to their pacifist beliefs. In their character arc, show how they adapt to the power they hold as the Inquisitor. They could use their position to promote peace treaties and cultural exchanges. However, they will face opposition from those who think the Inquisitor should be more forceful. As they progress, they might learn that there are times when a more assertive approach is needed, not in terms of violence, but in standing up for their beliefs. This evolution of their beliefs and actions can make for a very interesting character arc.
Joan of Arc was a French peasant girl. She believed she had received divine visions instructing her to help drive the English out of France during the Hundred Years' War. She showed great courage and leadership, leading French troops to several important victories.
At the moment, there's no definite information on whether Berserk manga will continue. It might, but it could also remain unfinished. A lot depends on the circumstances and decisions of those involved in its production.