One main theme could be discovery. Discovering new places, new ideas, or new aspects of oneself. Another might be adaptation, as characters would need to adapt to the new world they find themselves in.
The main story of New World is quite extensive. It usually takes players anywhere from 30 to 50 hours to finish, depending on their playstyle and how much they get involved in side quests and exploration.
The length of the New World main story really depends. If you focus mainly on the main quests and don't do much side content, it might take you around 20-30 hours. But if you get into all the side quests and take your time exploring, it could easily double or triple that.
It really depends. Different people might have different opinions on what constitutes the 'main story'. But generally, it could be several hundred chapters or pages.
To start the main story in a new world, you might begin with a mysterious event or prophecy that leads the main character there. Or, show them being transported unexpectedly and having to adapt quickly.
I'm not sure specifically as there could be many different stories with this title. It might be about children growing up in a new and changed world, perhaps dealing with new technologies, different social systems or environmental changes.
Since I don't know the exact story, it could be a group of children with different personalities. There might be a brave leader - type character, a smart and curious one, and perhaps a shy but kind - hearted child.
Well, in the 'New World Symphony Story', Antonín Dvořák is the central figure. But you could also consider the unnamed musicians and performers who have brought this symphony to life over the years. They are important in the sense that they help to communicate Dvořák's vision and the story within the music to the audience. And also, the people of America, both the Native Americans and African - Americans whose music influenced Dvořák, could be seen as part of this story in an indirect way.