In the realm of hopes and dreams, I think it would be cool if the Interdictor received a brand new ship card with the "Star Destroyer" label officially added.
There are two precedents already set for giving a ship new cards or having two variants of a ship class:
1. The ISD getting new ship cards with the Cymoon & Kuat refits.
2. The Onager having the testbed vs. Star destroyer ship class/card. (Also SSD)
The Interdictor-class Star Destroyer has already been made Disney Canon in the new Thrawn trilogy (Thrawn/Alliance/Treason) and I believe also in Rebels TV show (? Its been a while since I watched). Although its new image does scream "Star Destroyer" as much as the Legends version did, its part of the Imperial Navy, so having a cruiser variant and a star destroyer variant isn't out of the question.
An Interdictor with the Star Destroyer label would officially allow the use of the 7th Fleet title card, which many argued should thematically be allowed, and various other changes could be made to differentiate it from the suppression/combat refit roles. For instance more dice or more upgrade slots, for greater points cost obviously. Maybe add a new Title upgrade card to go along with it.
Would players be for this or against this? Maybe in the future FFG will release Ship Card upgrade pack (for new card sizes/updates/etc.) since those aren't included in the December release and something like this could be thrown in?