It looks like the Series 17 LEGO Collectible Minifigures (71018) have started to show up early in some places and we have a first look at the secret Highwayman minifigure that is included with wave. A user named lego_collector_dad has gotten a hold of the Highwayman at LEGOLAND Billund and he shown off the minifigure over on his Instagram page.
He has a black torso with dual molded legs. To complete the look he has a tricorn hat with a bandana, and a cape. The accessories include two Flintlock pistols. I’m not sure of all the secrecy behind it but he appears to be a fairly generic character.