With the additional funding Amtrak received for the FY 2018 budget, if this is going to happen it will be this year. In Amtrak's 5 year plan, working on the Gulf Coast project was the only route specifically mentioned and it fits in with Anderson's emphasis on corridor services in areas were the economy is growing. But, I still think the best we can hope for, at least in the near term, is service between New Orleans and Mobile. It avoids extremely expensive track and signal upgrades.
And, that segment of the route is where the money is in terms of the gulf coast casinos for the tourists and upscale beach communities as well as a growing Mobile metro area. It also might be a justification for improving the CONO if it used to provide the crew/equipment for the service. Mobile is also the logical spot for Thruway bus connections. Time to Pensacola is about 50 min, the Sunset took 2.5 hours because of the circuitous routing via Flomaton. Tallahassee is 3.5 hours from Mobile on the highway compared to 7 on the Sunset.