There probably are no reasonable islands of stability above the transuranics. Maybe the math doesn't work out on neutron star mergers and the resulting release

There probably are no reasonable islands of stability above the transuranics. Maybe the math doesn't work out on neutron star mergers and the resulting released degenerate matter being able to generate sufficiently large atomic number sizes, but I'd guess de-degenerating neutron star matter is doing quite the combinatorial exploration of atomic nuclei configurations.