The final version of Calligra 2.6 is due out in December of 2012. Too late to think about topic map features for that release.
But what about the release after that?
In 2.6 we will see:
Calligra Author is a new member of the growing Calligra application family. The application was announced just after the release of Calligra 2.5 with the following description:
The application will support a writer in the process of creating an eBook from concept to publication. We have two user categories in particular in mind:
- Novelists who produce long texts with complicated plots involving many characters and scenes but with limited formatting.
- Textbook authors who want to take advantage of the added possibilities in eBooks compared to paper-based textbooks.
Novelists and text book authors are prime candidates for topic maps, especially if integrated into a word processor.
Novelists track many relationships between people, places, things. What if entities were recognized and associations suggested, much like spell checking?
Not solving entity/association recognition writ large, but entity/association recognition writ small. Entity/association recognition for a single author.
Text book authors as well because they creating instructional maps of a field of study. Instructional maps that have to be updated with new information and references.
Separate indexes could be merged, to create meaningful indexes to entire series of works.
PS: In the interest of full disclosure, I am the editor of ODF, the default format for Calligra.