So Imperials right now are hurting in the competitive scene. There are a variety of reasons for this, one being in my opinion a lack of uniqueness. What I mean is, Imperials as far as I can see have no unique trick or slot. Scum have the Illicit, Rebels have astromechs, but Imperials have no tech they don't share with someone else. The SLAM drive is a strange example of FFG giving a upgrade that was supposed to have been developed by Imperials first and stolen by the Rebellion, to the Rebels not only first but exclusively. Cloaking used to be an Imperial only ability until Scum got their hands on it. They have solid ships but nothing exclusive mechanically.
I have a few ideas of things that can help bring Imperials back. One is give them access to a Hull regen crew member. It would be similar but different enough from the Rebel and Scum shield regen to give Imperials a bit more staying power without copying completely another factions ability. Call them "Engineering Crew" or something to that effect. Maybe make it an action to discard a facedown damage card or flip facedown a face up card. That gives it some reasonable limitations (For example not being able to use it while stressed) and sacrificing an action without it needing to cost an arm and leg.
Also it seems interesting we have seen no Imperial ship with astromech slots despite knowing in lore they produced and used astromechs for certain ships. Maybe include a card for the Phantom in a later Aces pack as a title. "Astromech Refit: Replace Crew slot with Astromech." And include some Imperial Astromechs that favor aggressive tactics.
Another is the introduction of a "Tactics" card. Similar to the status cards the Wave Ten introduced but have them be a card not tied to a specific ship but to the list in general. The Empire is a well trained and coordinated machine. Something that helps represent the squadron tactics trained at a military academy would help not only give the Empire an exclusive tool but could also help relieve emphasis on Aces. Simple ones could be something like "Squad Coordination: Each non unique ship after the first that fires on the same target may add one dice or cancel one (evade dice). Attacker must declare which effect they are using prior to rolling." Or "Defensive Formation: Each non unique fighter may sacrifice one attack die to add one defense die to a friendly ship at Range One."
Or even something like "We do need need their kind of Scum: Player may include one unique Scum ship in their list at an increased cost of (X)."
The Aggressor may bring back Imperial competitiveness. We will have to see but I am personally unsure about the value of seeing the Imperial version of the Y-Wing TLT swarm hitting the table. There are plenty of TIE variants to utilize and perhaps things like the TIE Scout may show up and be more strategic pieces or the much requested Assault Gunboat. FFG has tools and options to bring the Empire back to it's proper place of Galactic dominance. Only the Emperor knows if they will seize them