So now we get to see what Japan gets. I'll give you a hint: it's better than ours!

Quote Originally Posted by Nintendo World Report
Check out the latest swag that is coming to Japanese Nintendo fans!

Club Nintendo Picross Plus and a special Japanese Mario-themed calendar are going to be awarded to Platinum Club Nintendo members in Japan.

Club Nintendo Picross Plus features over 100 new puzzles based on characters from such franchises as Super Mario Bros., The Legend of Zelda and Animal Crossing. The game will be a 164 block download and available only to Platinum Club Nintendo members.

The 2015 Club Nintendo original calendar features Mario characters wearing seasonal garb related to traditional Japanese holidays. The calendar will be distributed to both Gold and Platinum Club Nintendo members.

Neither award has a release date at this time, though typically Club Nintendo Japan items get to members before the end of the calendar year.
Source: http://www.nintendoworldreport.com/news/38594/

As the article isn't particularly clear on this, I'll elaborate: all Elite members (Gold + Platinum) get the neat cardboard-looking paper calendar, plus Platinum members also get the exclusive Picross game.

Now I'm not a mega Picross fan, but while others' opinions will vary, I think that Japan once again gets the better rewards. They are collectable, they are limited, they have exclusive art, they are Club Nintendo branded, and the Platinum folks get two rewards instead of one... and there's no chance any of the Elite members had a copy of this exclusive Picross game from any earlier acquisition.