In general, mangas don't typically have fillers. They tend to have a more focused narrative without unnecessary additions to stretch the plot. But there can be exceptions depending on the author's style and the publishing requirements.
It usually involves a team of animators and producers who study the manga closely and decide how to bring it to life visually. They consider factors like character designs, story pacing, and the overall look and feel they want to achieve.
In the case of 'Berserk', many fans prefer the manga. The anime fails to capture the full horror and complexity of the story presented in the manga. Also, the art style in the manga is highly praised.
Mangas have a huge impact. They give the initial story and world-building. Anime producers take these elements and bring them to life visually, sometimes adding their own touches for better animation and audience engagement. But the essence usually comes from the manga.
It's possible. If the first season of the anime based on a completed manga is highly successful and there's enough interest from both fans and producers, a second season can be made. However, factors like production costs and licensing issues can also come into play.
Not many. The market for American mangas being turned into anime is relatively small. But there have been a few cases like 'The Maxx' which had a limited anime adaptation.
There can be quite a few differences. For example, the anime might change the order of events for better pacing or add new scenes for more depth. Sometimes, the character designs in the anime might look slightly different from the manga.