The engineering blueprint improvements in Colonia were also supposed to come back to the bubble too....
I don't recall Frontier ever saying that, though it was certainly a frequent request for a while ... but, that said, there isn't really anything on the exclusive list out here that's worth the trip.
- G5 life support (any blueprint) provides basically no useful performance gain over a stock module in most cases; the advantage over G4 is barely measurable even in theory
- G5 shielded refinery, fuel scoop and AFMU are entirely useless blueprints. No-one is going to deliberately target any of those modules, they have binary performance so the first 99% of damage can be entirely ignored, and in the event that they fall over from their share of generalised damage you'll have way more important things to worry about.
- if you can't get an initial lock on your target with a G4 interdictor, you've got bigger problems that a G5 won't solve
- the SCB blueprints ... going from G3 to G4 the half-second shortening on the window for feedback cascade might actually be worth it for high-end PvP builds flown by and against top tier pilots ... and the extra heat reduction on the other blueprint might help it fit certain niche PvE builds better. That's the one actually useful one, and it's still pretty niche.
(The advantage on the interdictor and SCB ones isn't the higher grade, it's that Brandon is far more straightforward to unlock than Lori "snake oil" Jameson)