I was referred to this page from posting to the forum. I am also interested in being able to use user class and status to modify the page. I will try to put together a plugin. From what I can see there needs to be a few items in it.
-* It should expose a link to a dedicated login page that, once logged in, returns the user to the calling page, or at least the home page.
+* It should expose a link to a dedicated login page that, once logged in, returns the user to the calling page, or at least the home page. I have started a plugin to do this: [[/plugins/contrib/justlogin]]
* it needs to expose a link to a little json explaining the type of user and login status.