All items are still sealed with the exception of the Nendoroid Petits. The Petits are still sealed in their bags but the boxes were opened to see what was inside. There is one loose Nendoroid Petit that doesn't come with a box.
The Asakura Nendoroid includes extra parts to turn the Yuki Nendoroid into her witch cosplay, give Haruhi's nendo a ponytail or.. do something I am unsure of what to Mikuru. 
(Picture as example.)
Feel free to email me with any questions!