There'll be a promo this Christmas, yep! Exact dates will be announced a little closer to the start of the promo.
Also, just a heads up, the website's sprite renderer has been updated with full support for 3rd jobs (including jRO versions), so it can now be used to preview the new job suits! On a related note, I'm currently working on an update to add support for the custom mounts that some of the 3rd jobs have (specifically RK, Ranger, and Mechanic), so if anyone bought an RK suit and was wondering where their dragon is, it's just out to lunch. :D