Various sources, such as this, and this, are reporting that the Vatican intends to issue a postage stamp sometime in 2017 commemorating the500th Anniversary of Martin Luther's release of his 95 Thesis, an event credited with sparking the modern Protestant Reformation.
No date nor design has been publically released.
The Vatican postal site 2017 program includes a listing for " Riforma protestante, nel quinto centenario" [Protestant Reformation in the fifth centenary]
The design shown above, according to the accompanying link is said to be a "joke", though with no information upon its source.
It is probably produced by a Vatican loyal source, indicative of what they would really like to issue.