User blog comment:Eddieblake/New K-ON Visual Invites Fan Speculation!/@comment-4495599-20130611205942

Judging the first image, i think it was made in commemoration of K-ON!'s placing in "Animedia's 32nd Anniversary the Best Animation's" poll. It is written in the upper left corner. And the image has a number 4 to the right, near Yui's guitar, that's the rank the series got in the poll.