Terry Harper writes

My feeling is that if you leave it to nature, the most suitable
vegetation will grow all on its own, and the wildlife around there
will appreciate that.

Its unlikely to stay the same. Most probably go to gorse monoculture
which is unlikely to be ideal for most wildlife except at the perimeter.

Nature tends to a monoculture in temperate climes and this is not at all
biodiverse.

--
Oz
This post is worth absolutely nothing and is probably fallacious.