The beloved Mad Men returns April 13 for the first half of its split-up seventh season (the second half airs next year), and so far there is the typical zero information about what we can expect. We know Don stands outside the Algonquin hotel at some point? That's about it. AMC has now released the first teaser for the new season, and in it we see Don disembarking from a TWA plane while we listen to a weirdly remixed "Que Sera Sera." What does it all mean? Well, as the song says, the future's not ours to see.