Honestly I think caps need a complete rework.
Delete capital injectors or make them unusable in triage to make fax susceptible to cap warfare, reduce rep significantly, closer to old triage, and scale it based on sig so they're not great on anything smaller than battleships. Fax are the single biggest problem in capital and even sub capital fights. 1 fax can essentially make a 40 man gang irrelevant unless they're using Triglavian ships and this is imo why medium-scale roaming in anything bigger than Kikis is just dead.
Prevent supers from using any anti-subcap/space superiority fighters. Their role needs to be scoped better and I'd make them revolve around high anticap DPS (which will be more powerful without broken fax reps meaning you have to volley everything) and their burst projectors.
Delete HAWs. Dreads' role should be purely anti cap/anti structure, this scopes carriers back into the anti-subcap/anti-fighter role.
Remove the boson. The lance is more skill intensive and less oppressive to gangs especially with booshers and MJDs.
Next up, revert the Rorq to an on-grid booster and ore compressor. It can keep panic, but the panic only affects the subcaps around it and not the Rorqual itself. This means that super/Rorqual PvE isnt great and people have to use engageable ships for PvE, carriers and down because soups and titans apply like shit to rats now. Tweak bounties as appropriate to keep nullsec ratting rewarding.
Finally I'd cut the EHP on supers/titans by about 33% across the board.
Essentially this would mean the only caps which are useful against subcaps would be carriers and new post-nerf faxes, which are reasonably manageable even for smaller groups. It would also fit caps into the 1 up/1 down metagame.
Caps were previously balanced around being expensive and rare, but they arent either any more and they should be rebalanced to reflect their status as just another ship in the hangar.
Also, keep blackout.
Some reasonable suggestions in there for sure :)
The changes that you're talking about to the Rorqual are changes I've already pitched internally, including changes to the orca too, to turn it into a compressed hauler for logistics support that can't mine.
Personally, I'd just prefer the removal of the PANIC system.