Quoted from yemons:
I noticed the Pingame Journal one but it looks like they only have one for 2017 right now. I figured that they may not be publishing anymore.
Their facebook page has some vaguely recent posts, so i sent a message there asking if they are doing one for 2018...i had just been thinking about a pinball calendar that i saw on a friend's wall last year when i clicked on this post. I think it was that journal one, unless there are other pinball magazines out there publishing wall calendars.