I know this one is going make some people heavily doubt the accuracy of the report, but the Expanded Universe is making its way back in to the canon of Star Wars. There is some truth to legends and I think we're about to learn that truth for one classic Star Wars character. I have reason to believe this rumor has serious legs.
I have heard that in Season 3 of Star Wars Rebels we will be introduced to none other than the original blue guy himself, Grand Admiral Thrawn from Heir to the Empire. From the sound of things, we're going to see Thrawn as the tactical genius of capital starship warfare he was to Expanded Universe readers in the '90s. However, this time he will be using his evil brand of genius against the the heroes of the starship Ghost.