I think that disembarking from normal Ships/SRVs will be a fade to black scenario. But I do get the impression that there will be a new dropship for entering conflict zones. I believe the only time Gareth mentioned them in the interview was in relation to conflict zones. So I wonder if you will be able to take those missions and be dropped into them. Bearing in mind that they have said it will be possible to play Elite now without ever owning a ship, so there must be some way (other than Apex hopefully) of getting to certain missions.
Come in on a dropship, clear out the CZ, dropship comes back to take you back to the social hub.
I do also hope that some of our ships might work in a similar way, maybe with physical multicrew. As Rubbernuke says, a Federal Dropship that can't be used as a Dropship would be very disappointing.