The link near the end of this article was a really interesting rabbit hole to go down: Death to the Gerrymander, wherein the same author argues that Monday's ruling in Cooper v. Harris striking down racial gerrymandering was an appetizer to the main dish, Whitford v. Gill, a case from Wisconsin dealing with purely partisan gerrymandering. It seems that SCOTUS views such purely partisan gerrymandering as unconstitutional but without a reliable, predictable tool for distinguishing it.
It's generally inadvisable to place all hopes on any single outcome but Whitford v. Gill shows a lot of promise for reducing political polarization. It's preferential that politicians not be rewarded for their partisan games, i.e. outlawing gerrymandering, but in this instance it would benefit Democrats, a development I'm disposed towards.