Features people have requested for EPUB

Feature Requests for EPUB 3.1 link

Media

• Consider adding a 3D format as Core Media Type
• Consider adding a speech-optimized audio format as Core Media Type
• Consider adding the new image format BPG
• [done] Consider adding support for a new WOFF2 webfont format

Scripting

• Consider adding formalized mechanism for scripts requesting to make remote calls
• Consider incorporating Cross-Origin Resource Sharing in EPUB
• Consider prescribing a local storage API for JS-enabled reading systems

Open Web Platform Alignment

• Consider supporting the HTML serialization
• Consider starting the migration from @epub:type to @role
• Consider reviving the OCF File System Container as a server-oriented manifestation
• Identify a workable solution to the aria-describedat/longdesc conundrum
• Identify method to retain one (and only one) table of contents that can be rendered to reader in more than one way
• Consider adding RDFa Lite (and possibly JSON-LD) as the syntax for metadata

Media Overlays

• Consider supporting user-controlled granularity of synchronization
• Consider supporting CFI character range synchronization in SMIL files
• Consider supporting hard of hearing use cases in Media Overlays
• Consider adding metadata to specify different types of MOs (audio-only, text-audio, video? etc.)

Package File

• Consider adding metadata for Braille formatting and Braille codes
• Consider adding new value for epub-type to represent the list of skippable structures in the Navigation Document.
• Consider adding metadata for Navigation presentation modes
• Consider adding support for custom attributes in the Package File
• Consider adding XAdES or ASIC
• Consider extending alternate style tags (2.1.3.5)
• Consider allowing nesting of meta tags

Deprecation of existing features

• [done] Consider deprecating epub:switch
• [done] Consider deprecating epub:trigger
• [done] Consider deprecating bindings

Modular specs for incorporation

• Consider incorporating Region-based Navigation
• Consider incorporating Multiple Renditions
• Consider incorporating EPUB Previews
• Consider incorporating EPUB Scriptable Components
• Consider incorporating Open Annotations in EPUB

Synchronization with Other Specifications

• [done] CSS Modules
• [done] HTML5
• ISO/IEC EPUB

Bug fixes