The following have popped up on reddit.
First there was a cropped image from this calendar which reddit removed by request. LFL usually doesn't ask to remove fan art. Then the actual calendar showed up as seen below.
[Wild Rumor] The new picture is a part of a Russian company calendar from StarWarsLeaks
Then along comes another full clean image of the same, shot in reverse now showing the FALCON.
Another ‘Solo’ image has appeared on 4chan. Don’t know if it’s real or fake. from StarWarsLeaks
This looks pretty legit to me, but only time will tell. Hopefully in a month or so we will have a teaser!