Automatic numbers superscripting in OS X Maverick and Pages 5 Is there any way to setup automatic superscripting in OS X Mavericks and Pages 5 (i.e 1st => 1st.

Is there a 3th party plugin that implements that functionality?
Not yet.  I would recommend staying with Pages 4 if that feature is important.  A workaround might be to add what you need to the Text Substitution section of system prefences using Unicode superscripts, but it may not work or look that great. 

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