Amazon has put up listings for two upcoming 2018 Wall Calendars. One of which is based on the modern designs of the characters from various Nintendo games. If you are interested, you can preorder the Super Mario 2018 Wall Calendar with this link on Amazon. You can also take a look at its front cover, and product description, from the retail listing below:
Join Mario™ on an incredible adventure as he navigates the world of the Mushroom Kingdom in this 16-month wall calendar. Featuring fan favorites including Luigi™, Bowser™, Toad™, Princess Peach™, and Yoshi™, this calendar is sure to make 2018 a year of fun and games.
The other is the Super Mario Bros. 2018 Retro Art Wall Calendar, which feature artwork from the very first game of the franchise. You can preorder it via this page. You can take a look at the front cover and description of the retro version below (via the aforementioned Amazon listing):
Featuring vintage art and iconic imagery from the original Nintendo® video game Super Mario Bros.™, this colorful 16-month wall calendar is a must have. Including fan favorites such as Luigi™, Bowser™, Koopa Troopas, and Goombas, this calendar is sure to entertain nostalgic Mario™ fans and new gamers alike!
Both calendars cover 16 months as they will have the final four months of 2017 in addition to the entirety of 2018. Both Mario wall calendars are coming out on the 8th of August in the North American region.