I'm not sure specifically as I haven't read all of his new novels yet. But often authors explore themes like love, family, and personal growth in their works.
Well, libraries are also a great place to start. They keep updating their collections with new novels. You can ask the librarian if they have any of Sujeewa Prasanna Arachchi's new novels in stock or if they can order them for you. Additionally, following the author's official social media accounts might give you updates on where to find his new novels.
Since I don't know the specific content of Sujeewa Prasanna Arachchi's new novel, it's difficult to say much. However, generally, a new novel might explore new themes, introduce new characters, and use unique writing styles. It could be about love, adventure, or social issues. To really understand it, it would be best to read it or find someone who has.
I'm not sure specifically what the'sama sama letter day story' is about as it's not a widely known common story. It could be a very personal or a story from a specific local or cultural context.
I don't know for sure. Usually, scanlations of less mainstream novels can be hard to find. You could try checking some manga and novel enthusiast groups online, but keep in mind the legality of it.
The Kaguya-sama manga is indeed finished. It ended after a successful run, leaving fans with memories of an engaging and enjoyable story. The final chapters tied up loose ends and delivered a conclusive ending.