They've got time (!), the repair drones, advanced labs and a lot of unused internal space in the Disco. I really hope they play on this and avoid the Voyager handwave reset routine that blighted their 'lone ship survival' arc.Stamets is badly injured and the spore chamber is partly wrecked. They're going to have low warp until they fix the enormous amount of damage with a minimal crew as it is.
A small crew also opens up possibilities to bolster their compliment with recruits, waifs and strays from their new time period. Like Neelix. But not...