I don’t think fine joinery can ever be completely machine based. A big part of job is learning to understand the natural properties of wood and using this knowledge to influence how you work with it. A machine would struggle to match grains, choose the most ascetically pleasing face on a board or even select the best timber for the job.
It’s hard to say what the future holds, but with the high demand for construction and development in the City, I think it’s safe to say that joinery’s here to stay.