  We explain and explore class-theoretic potentialism -- the view that one can
always individuate more classes over a set-theoretic universe. We examine some
motivations for class-theoretic potentialism, before proving some results
concerning the relevant potentialist systems (in particular exhibiting failures
of the .2 and .3 axioms). We then discuss the significance of these results for
the different kinds of class-theoretic potentialist.
