I actually quite like this idea. Obviously make the bubble like a triage module where for 5 minutes it is up, you cant get any reps and are immobile. Obviously activating the bubble would take a massive amount of cap (And maybe stront?). Plus I’d imagine the bubble itself would likely be in the 70-100km range.
I dont really see the point in having it as a focus point because it wouldn’t do anything more than a devoter could, so if you were to have it as a module that could be scripted, maybe make the script similar to the supercarrier remote bubble thing? So you target a ship and when activated it consumes like 3x interdiction probes, lands on the target and bursts into like a 20km bubble?
On the topic of the bubble launcher, it could be beneficial to scrap the interdiction capital idea and simply make a line of capital ships that are capable of using all the remote burst modules supers can and have racial bonuses to each one. For example the amarrian one could get a bonus to the range/neut amount of the neut bubble. These ships would be carrier level EHP/Size, however wouldn’t have access to fighters or remote reps, and instead would actually have damage systems similar to the old carriers, where at carrier V you can field and extra 5 standard drones (10 total) with enough bandwidth to field 10 sentries/heavies. Drone bay would be around 1km3.
Also, each race of these carriers would get a significant bonus to its races EWAR drones, making the neut/damp/tp/web drones actually useful for once. Obviously the issue standing would be what would be stopping big low sec groups from just fielding 50 of them like the old slowcats? Well, a full flight of heavy damage/ewar drones would account for 1/4 of the drone bay, meaning 4 sets max, however the damage bonus on the standard drones wouldn’t be the standard 10% damage/level, it would be something reduced like 7.5% damage/level which should balance it out somewhat. Also, standard carriers would still overpower these ships in true combat roles, these ships would be alot more suited to fleet support/ewar roles.