The agency that reported Gold and Silver Mario has struck with a lot of non-Fire Emblem unicorns.
http://www.nintendoworldreport.com/news/40430/several-rare-amiibo-have-reprint-revealed
It appears we now have confirmation that some of the rare Amiibo have been reprinted as recently as last month.
First found by @AmiiboNews, Nintendo's CSPIA listings page was updated with new printings of some Amiibo effective June 3. The documents, such as the one pictured for Ness, show reprints in May 2015.
Among the rarer Amiibo in the listing are Ness, Rosalina and Luma, Captain Falcon, Wii Fit Trainer and the Villager. There are no listings for the Fire Emblem characters, Shulk or Little Mac.
The CSPIA is an agency who ensures compliance with manufacturing rules for toys, and they famously revealed the Gold and Silver Mario from the Super Mario series.