...this is might be it: Lampkins Crossing, LLC v. Williamson County, No. 3:17-cv-00906 (Nov. 14, 2017), in which the District Court dismissed substantive due process, procedural due process, and equal protection claims for not being ripe under Williamson County's "final decision" prong. The Williamson County case decided on Williamson County grounds.
Now, we're just being cheeky with our title, of course, and this case may not present a good vehicle for addressing the most troubling prong of Williamson County (the "available state remedies" requirement in takings cases), but with the real County being the defendant here (and not the Williamson County Planning Commission), who could resist? Just think of the law review article titles, and the confusion in oral arguments about "Williamson County."
Short story here is that the plaintiff's claims against the County were not ripe in the court's view, because the County still might allow some development, and it "did not take a final, definitive position how the Lampkins parcel could be developed." Slip op. at 5. Submit a revised plan or a request for a variance, and we just might approve it.
Lampkins Crossing, LLC v. Williamson County, No. 3:17-cv-00906 (M.D. Tenn. Nov. 14, 2017)