Mara Jade, as it were, was introduced in "Heir to ... later retconned as being Mara in disguise on a mission to kill Luke Skywalker, whom Palpatine wanted dead (recognizing the danger he posed).

This post contains SPOILERS for Star Wars: Battle of Jakku - Insurgency Rising #2Star Wars may have just set up a fascinating way to bring back Mara Jade into the official canon, Luke Skywalker's ...