Janeway and co are definitely watching something that's shocking them, but it doesn't seem to be on the bridge of the Dauntless or some other ship.I don't recognise the background.It also looks like they are all watching something on a big screen. There is some bright sun light on Janeway’s face so she could be observing a supernova or large explosion? The emotion also seems to have been depicted on these toons faces, they look shocked?
I hope that if the Protostar is destroyed, everyone is safely off. Though I guess that hologram Janeway may need to pilot the ship if Dal can not. But how would the EMH feel about this? We know that he was an active campaigner for holographic rights, but as long as she was not forced to fly the ship to it’s destruction then I guess that it would be an example of her free will and humanity. This hologram may have saved all of Starfleet, though I wonder why Dal did not go down with his ship?
Next weeks episode could potentially be quite emotional.
As for a replacement ship… perhaps the Protostar A can be an Starfleet Academy training ship with a crew of cadets who know how to operate it effectively? They can go on ‘live’ training missions a bit like when the Enterprise and it’s cadets were taken over by Admiral Kirk for a mission. Admiral Janeway may take over in a similar way.
It might be hard to pilot and run Protostar ships, they may need specialist crews which Starfleet may not have many of, Dal and the crew trained themselves under the guidance of hologram Janeway but they are fit for purpose. Dal even did the Kobayashi Maru.
Other than holo-Janeway, we can be certain none of the protagonists will be killed. If holo-Janeway chooses to go down with the ship to save Starfleet, it will be her own choice (and a redemption for being infected by the construct and unwittingly acting as its agent). If she goes down, I think we will see both her and the Protostar back, in the future where Chakotay is stuck.
Having said that, it's also possible that an attempted detonation of the protostar core will lead to unintended but fortuitous time travel (probably with the crew onboard, in that case - the synopsis does say that the crew must make the ultimate sacrifice), rather than a (small) supernova.
I don't see Starfleet giving those teens/children, including 8-year old Rok, a vessel (and still a classified prototype, at that, if they even have a second example of this experimental class of ships ready to go). They aren't even cadets yet (and becoming one is going to be very difficult for Dal, and questions will be asked about Gwyn as well) and most of them belong in some Federation equivalent of youth protection (and overdue treatment of their respective traumas). At best, they might be allowed to come along on a mission to find Solum on the Dauntless, if one of them (Gwyn) is deemed to be essential for that mission.
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