Do I need a fourth or fifth degree? Would I enjoy it? Of course.
Art History because I want to put this focus on my interest in the history of the First World War - it is artists of this period that would be my focus.
The MEd to keep my hand in. Or an MRes.
Or start a PhD to complete over several years while doing a PGCE at the other end.
All of these or just stick with the garden, Netflix and a bit of light reading.