First and foremost, I would like to sincerely thank @Power_Armor for being the spark of inspiration for this suggestion.
This essentially sums up the suggestion.
I would like to suggest that all ships be stripped of their role and ship bonuses. Do not remove them from already produced ships, even if packaged still but instead allow us to start using data cores through manifacture to add bonuses how we see fit.
This would completely upend the current meta dynamics and allow for emergent, never before seen content. One would not be able to set up doctrines to counter known via zkillboard enemy fleets. This extends to all types of gameplay.
Highsec miner ships could have different bonuses that would make it much harder to guage how easy the kill would be. Explorers could use ships that arent completely ugly! Haulers could be much faster, for example. So many options.
Another thing that could be changed is the high, mid, low and rig slots! Using more data cores, and effecting the material cost we could change the slots based on some point system.
For example, take an orca. 6 high slots, 5 mid slots, 2 low slots, and 3 rig slots.
Say a high slot is 10 points each. mid 8 points, low6 points. Rigs 15 points.
So an orca would have in that hypothetical example a total of 157 points.
From that i could choose to reduce the number of rigs to 2, giving me 15 points. That would allow me to have 2 additional low slots, or 1 additional mid slot and 1 low slot! the leftover points could then be a flat reduction in material and component costs for manufacturing these ships.
That would change the entire fit!
Say i want an orca using strip miners! Data cores! Say I want an Avalanche boosting my mining fleet! Data cores!
This sytem would also make industrialists far more important. It wouldnt just be research and then use endlessly and mindlessly outside of normal material costs x number to produce. Giving player agency to fly the ships they love to look at but have the role for their playstyle that might not normally fit would make the gaming experience more enjoyable.
This could change the entire game, making wars far less predictable, far less of crunching some numbers and +1ing it.