Hmmm... if this ends up in state court, the (partisan, elected, 5R/2D) Louisiana Supreme Court = Republicans win. If it ends up in federal court, it gets appealed to the 5th Circuit, which also basically = Republicans win. If it then gets appealed to SCOTUS, it's clear at this point that 3 SCOTUS Justices (Thomas, Alito, and Gorsuch) are ready to strike down the requirement for VRA districts entirely.
Roberts has clearly favored easing other VRA restrictions on states in the recent past. They would need one of Roberts or Kavanaugh to back a requirement for a 2nd VRA district or to overturn the LA Supreme Court's adoption of Republican maps.
I'm not actually seeing a much cause for Dem optimism here unless they have flipped SCOTUS by the time it gets there? Maybe Edwards makes a deal where he will just sign whatever the GOP draws for the state leg if they send him a congressional map with 2 VRA districts?
Also didn't the US Supreme Court basically ruled recently that when it comes to redistricting, state supreme courts have the final say?