Money quote, from the judge's decision:
After seventy years, Jerome Siegel’s heirs regain what he granted so long
ago — the copyright in the Superman material that was published in Action Comics,
Vol. 1. What remains is an apportionment of profits, guided in some measure by
the rulings contained in this Order, and a trial on whether to include the profits
generated by DC Comics’ corporate sibling’s exploitation of the Superman
It looks like DC retains control over the character--my initial thought was that the judgment would give Siegel's heirs that control, which would've been disastrous for Daddy Warnerbucks--but it looks like it'll "only" take the form of financial recompense. Given the prominence of Superman as DC's flagship character, this is not insignificant.....