Originally announced for a June 26, 2018 release, Timothy Zahn’s Thrawn: Alliances has now been moved back to July 24, per Random House’s official catalog.
Short delays of this nature are fairly common, and this is still only one of two new Del Rey novels we have on the schedule for 2018, so some shuffling is to be expected. (Hopefully, this indicates we’ll hear about more books soon.)
The team-up between Darth Vader and Grand Admiral Thrawn is a sequel to last year’s Thrawn, Timothy Zahn’s first novel in the new canon (and tenth overall.) Thrawn will be out in paperback on January 30.