Yes, Workiva is working to improve design aspects in Designed Reporting. Some recent updates include:

• A feature allowing users to lock object properties, giving them control over their document layout. Authors can then work collaboratively on object content without altering its properties.
• For EDGAR filings, there are enhancements to incorporate design elements like floating objects and background images into SEC documents.

Regarding the import of editable images from .docx, while there isn't specific information about handling .pbg images or their editability in the current files, there are improvements aimed at design flexibility and collaboration.

To learn more, you may want to look at the detailed updates in the Workiva platform or contact Workiva support for specific inquiries.