I would say it's very far from done, as the current fiasco demonstrates. Whatever shape Brexit finally takes, it will look different from this.
It saddens me the way Labour has now accepted the basic skeleton of this brexit, though, including the new restrictions on movement. All too many echoes of 1962. Tories end free movement from the Commonwealth, with the support of quite a few British people who express concerns about foreigners taking their jobs/housing. Labour initially oppose the move in a half-hearted manner, not wishing to upset those who have expressed concerns about foreigners taking their jobs/housing, only to end up endorsing it and indeed hardening its provisions when they come back into power.