LEGO released the official set description for the Combat Frigate a few days ago. It is $109.99 USD and the official release date is on August 1st. Unfortunately there are no official pictures on the website as of yet.
Here's the official set description from shop at home:
Imperial forces are on the hunt for Ezra and his rebel friends aboard the Rebel Combat Frigate. If they’re forced into battle, get into position with the lifting handle and fold out the wings. Then load the spring-loaded shooters, arm the stud shooter and fire! Can you fend off the Empire’s Agent Kallus and escape to safety? That’s up to you…
Includes 4 minifigures: Ezra Bridger, Agent Kallus, Ahsoka Tano and Commander Sato, plus Chopper Astromech Droid.
Features foldout wings, spring-loaded shooters, stud shooter, a useful lifting handle and removable upper cover for easy access.
Remove the top and play out adventures within the starship.
Grab the lifting handle and make-believe you’re piloting a real starship!
Fire the weapons to act out exciting deep-space battles.
Weapons include Ahsoka’s Lightsabers, Ezra’s Lightsaber and Agent Kallus’ built-up blaster.
Also includes a wrench accessory element.
As featured in the Star Wars Rebels animated TV series.
This set offers an age-appropriate building experience for ages 9-14.
Rebel Combat Frigate with engines closed measures over 4” (12cm) high, 14” (38cm) long and 5” (14cm) wide.