Yeah whenever this new engineering update gets implemented I'd say the option to salvage them for 50% of the premium and not so premium materials would be ideal. Especially since now FDev have basically just paperweighted their entire line of E-A FSD (non-SCO) drives.
Fortunately, we don't have large A-class SCOs in Colonia so I don't have to worry about the heart break in selling 7A G5 FSDs. I already deleted all of my worthless (non-Salvation) Guardian modules and weapons taking up space, since those are now obsolete too without additional grind mechanics to "treat" them... And you can't even do that with the power plants, distributors or hull modules. Not sure what they're going to do about the assets just taking up space in the outfitting menus. They should just disable the ability to buy non-SCO drives, since there are no perks to using them anymore... And disable the ability to buy non anti-field Guardian modules.
They could even simultaneously migrate their Guardian unlock system to their newer and more beloved "per module" system they've been forcing on us, like with the pre-engineered FSDs and Salvation modules, since everyone knows that's the system they favor above all else. In fact? Just get rid of the outfitting stores and just make everything require something like 25x micro-weave cooling hoses, 25x datamined wake exceptions, 15x Selenium...etc.
Like good ol Rage Against The Machine says, "Grinding in the name of..." Or...something like that.
In either case, they have to do something about the now redundant modules they are single-handedly obseleting. It's just there...taking up space.