I kept thinking how Pres Trump, Ivanka, and Melania all said "The Best is Yet to Come".
Also, Ivanka's blue dress at Tiffany's wedding. I wonder if those are hints leading up to tomorrow.
Also, the fact that he left the WH in Airforce 1 and Brandon entered in a chartered plane is a giveaway.
Trump's farewell speech, the best is yet to come: https://youtu.be/beZT4T--cXk
Trump delivers his final speech as president before boarding Air Force One for the last time: https://youtu.be/hIFeJ0nSuFw
President Trump arrives in West Palm Beach aboard Air Force One: https://youtu.be/zND1An4avyc
Trump's children emotional during farewell speech: https://youtu.be/CVPVxv4Ozk4