I'd be about 95% sure if there's funding there will be a food contract. This train is supported by Louisiana and Mississippi for multiple reasons.
By the way I checked Wanderu and there are 22 buses each way between Baton Rouge and New Orleans on a weekday, mainly Greyhound. I read the KCS/CP/CN merger required one daily Amtrak train, but now they are talking two and using a grant to fix the 10mph spillway bridge, benefiting both railroads. (I'm guessing that was a negotiation.) Last I knew this was a heavily used freight corridor, though there are two other parallel routes, one on the other side of the river.
One other fact people might not know, much of the parallel interstate highway route is on trestle, moreso than the US highway (Airline), because the interstate was built over the lake shore, and wetter ground. If anyone's interested in the history of the ports, legend goes the Old Bridge in Baton Rouge was built by Huey Long low enough to stop ocean going ships from transiting further up the Mississippi. But most seaport operations are in New Orleans, with the intracoastal perpendicular to the river at BR dominated in this region by commercial boats and barges. Pleasure craft tend to the Tennessee Tombigbee system at Mobile. And in general, access to the Gulf for visitors such as beachgoers is all about MS, AL, FL, as well as TX.
Mark Twain wrote about getting lost piloting a boat between BR and NO on the Mississippi. When the fog lifted he was in a sugarcane field.