I enjoy the new support for JSON in oXygen 13 but there is another technology that I see growing, it's RDF.
There are RDF-specific products, such as Protégé, but I'm used to work with oXygen and I'd like to see it built up it's RDF support. In concrete terms, it would mean:
- assistance in the editor
- graphical editing of RDFS and OWL
In longer terms, support for SPARQL and other similar tools would be good.