A Surprise as the Madness Increases Tomorrow

My own case of Manchegan Madness is about to progress to a new level. Tomorrow I have a Big Announcement to make, and I hope you can join me as I try to make a difference in the world (Is that hint vague enough?).

Don Quixote had a mission, and so do I. I just hope mine doesn't appear as crazy as his.

Here's a visual hint: