New Asciidoc files can be created, which have a Source view...
...and a Visual view. The current content of the text editor is parsed by the Asciidoctor gem and the resulting HTML is displayed in a JEditorPane:
Awestruct support is also part of the NetBake plugin, with a new project type and other related features. An Options window is included for configuring the plugin:
I've been in touch with Jason and we're discussing separating the Asciidoctor parts from the Awestruct parts and then putting them seperately as plugins on the NetBeans Plugin Portal.