The following features are already planned.

* Write some infrastructure to make it easy to write import scripts
  from other formats (and write an import script from tellico to
  lesana).
* Write a command which reads data from a collection and writes it to
  another one, using a simple mapping of fields.

The following features may be nice to have.

* Having an indexing mode that adds the field as a value instead of a
  term, see
  https://getting-started-with-xapian.readthedocs.io/en/latest/concepts/indexing/values.html