One of the upcoming ships in the next update is the Revenant-class phase hybrid freighter/tanker. Such a ship classification brings up but one thing to mind: U-Tankers. U-Tankers were special WWII supply submarines designed to carry supplies and fuel and secretely resupply friendly attack submarines in enemy waters. They would hide until contacted by a sub and emerge to transfer fuel and torpedoes to them, extending their capabilities, before hiding again.
My suggestion is to add a similar campaign mechanic using to this upcoming ship - one that would be engaging both for allies and enemies.
Factions that make heavy use of phase ships (Tri-Tachyon, Persean League) could regularly dispatch small groups of Revenants (maybe with some phase escorts?) to the fringes of enemy faction systems where they would hide in Go Dark using their 0 sensor signature as phase ships. If the player is commissioned to them and trusted, they would be notified of the presence of these Revenants and, upon entering a system, would receive an encrypted comm indicating where the Revenants are hiding. Once there and without nearby ships from other factions, the Revenants would reveal themselves and tagging them would allow the player to request supplies and fuel. The price of these could be deducted from comission salary - at what rate/if at all is up to the dev to decide.
On the opposite side, being commissioned to a faction enemy to Tri-Tachyon/the Persean League could give you missions to find and destroy these hidden Revenants, adding much value to the Neutrino Detector as a phase ship hunting tool, same as how sub-chasers with sonars and hydrophones were hunting for U-Tankers in suspected locations IRL. Thematic as all hell.
If you've got ideas on why this is good or bad or how it could be made better, discuss!