Could you say that the Blog Template plugin provides an alternative to child themes?
If I modify a theme (specifically the header, background, and fonts) and then make a template of it, will that theme, with it's new header and background, be what is available to the users?
And if so, would they still be able to change the header and background to what they want them to be on their own site?
And for the setting "show template selection on registration" - does that show only these templates, or templates plus regular themes, or what?
And can they be assigned to levels in Pro Sites?
And last, are there any live examples of the display options:
As simple selection box
As radio-box selection with descriptions
As theme screenshot selection
As theme screenshot selection with titles and description
As a theme previewer
As a showcase inside a page
And again, for these display options, would only the templates be shown, or templates + regular themes.
Oh dear! One last question - how would these templates be affected if the original theme was updated? Would it act like a child theme, or are the new templates completely separate from their "parent"?