Since Lucasfilm annexed all Expanded Universe content into a galaxy called 'Legends' this represents the first time we'll see new adventures for Luke, Leia, Han and Chewie, outside of the movies in the new continuity. We only have two books so far - 'A New Dawn' and 'Tarkin' so the comics should add a nice layer of story. Interesting to note that Brian Wood's version of 'Star Wars' that ran with Dark Horse from Jan 2013 to August 2014 over 20 issues was also set in the period between 'A New Hope' and 'The Empire Strikes Back'. The storyline initially dealt with there being a traitor at the heart of the Alliance, which in itself was intriguing. One wonders if we'll see the appearance of Jaxxon - http://starwars.wikia.com/wiki/Jaxxon
perhaps the original Marvel runs most notorious character, basically a space rabbit smuggler. That he's already going to appear on a variant cover for #1 of the new Marvel run bodes well. Interestingly 'The Clone Wars' episode 'A Sunny Day in the Void' features a crashed spaceship with a giant rabbit skeleton in a space suit inside it.