Is there an item that was 'supposedly' released, but has never turned up, that you want to add to your collection?
Why not try asking the NT Editorial when it is going to be actually released?
http://www.neopets.com/ntimes/index.phtml?section=editform
Maybe we can get them to finally activate these items!

Note: Please do not spam the NT - only send one question in, make sure that you are polite in your question and keep your fingers crossed!