I think the following situations should trigger an event: (arguments to pass)

• Switch to a new page (page-DOM-object, page caption)
• Success:
  • Upload (file name, UI-upload-item-DOM-object)
  • Publish (file name, UI-upload-item-DOM-object)
• Error:
  • Upload (file name, UI-upload-item-DOM-object, raw API-response)
  • Publish (file name, UI-upload-item-DOM-object, raw API-response)

... and perhaps more like "before publish"

How an implementation could look like? What do I imagine:
$(document).triggerHandler('upwiz',
'community event',
'error',
'publish',
upload.name,
<DOM NODE>,
jqXHR.response
)

Version: unspecified
Severity: enhancement