This is probably my biggest concern here as well, and I feel like more details would be helpful in this regard. From the way it reads, without a Storyteller role you're simply going into the Mission with a similar outline as the other times it cycled to this particular mission. I can see this being exciting for the first few dozen times it gets run, but in time it'll lead to the same issue that Adhomai/Konyang had regarding planet-side ghost-roles. After a while, people get tired of the same exact thing, and it feels as if there would be a good chunk of limitations to the average "Actor" player in regards to telling a story, since a heavy emphasis is being placed on the story-teller to create 'mini-events' almost.
That said:
I do think this will be a good solution for juggling the people who want high-intensity/combat in a round, and those who would prefer not to at the moment or in general without having to play extended. As it stands currently, playing off-duty doesn't make you exempt to getting kidnapped and killed by the mercs, or accidentally getting set on fire by the techno. Surprisingly, people usually don't enjoy this happening. Dividing the ship into two sections feels like it would create an environment where both subsets of players are being seen to. In an ideal world obviously, you wouldn't have people complaining about there being too little or too much action because they chose to stay on the ship or go down. Of course, that's implying this implementation works perfectly.
I think my only other comment is similar to the questions about how secret will be changed, but more specifically: what is the rollout in this going to look like? I don't see it mentioned in the Doc anywhere. Will this be something that gets drip-fed to the playerbase with like, a Mission round every weekend to get them used to idea, is it going to be a flooding-like situation where the server is rapidly shifted over to the concept? Perhaps that's outside of the current scope of the basic suggestion, but I'd still like to know how this would be implemented for the average player if it did go through.
Is there a current timeline of when these changes would be made to begin with, if they went through? I know the statement is that it's been 'in the works' for six months, as a brainstorm but is there any idea on how long this concept would take to implement? I'm assuming it would be a massive ordeal, so is this something that would be a year? A couple years?
As it stands, the concept is unique and a refreshing take that would keep Aurora uniquely different from other servers, while being a positive step forward for RP in general. I just feel like I'd appreciate more details for the finer stuff at some point.