Of course, it's possible that Swift's post isn't about her new album at all. Based on the dates and the palm trees, fans are wondering if Swift is subtly announcing that she's playing at Coachella this year. The festival takes place in Coachella Valley, which is near Palm Springs, and this year, the festival will start on April 12, the date she seemed to allude to in her post.
Whew! *rubs temples* I think I need to lie down after all that.