QFT.If the assignments last half a season to a full season and then move on to the next one, I think the viewers would understand that a ship was necessary. Besides, a ship on the scale of a Galaxy-class vessel is essentially a space station unto itself. It's supposed to be this vast research platform with hundreds of scientists and labs. How does it make sense to have this huge university in space just spend a few paltry days at any given planet, especially if only the same half-dozen command officers and the occasional security guard are the only people who ever leave the ship? What's the point of even having all those scientists and labs aboard if you never stay in one place long enough to make any use of them? How does that ring true from a storytelling standpoint?
I know we never got anything like that during TNG's run because serialised arcs like that weren't generally the norm, but I think such a show would work today. Failing that, a few books would not go amiss - especially if it has a few familiar faces.
In my opinion, a novel series focusing on the civilian scientists and families aboard a Galaxy-class or comparable vessel, stationed at an interesting world for a lengthy survey, would be very interesting. Move the focus away from the Starfleet for once.
