Here’s a crazy idea. When the amfleet cars are retired some rich rail fans can buy them and use them as private cars. They shouldn’t need upgrades as they would be Amtrak compatible.
It's an idea that won't happen anytime soon, but it has happened with the Horizon sets.
Think about it this way. The ICT's are already ordered. The Amfleet 1/2 cars can go basically anywhere that's standard gauge track. Amtrak wants to expand service but also doesn't want to spend that Infrastructure Reinvestment Act money on equipment for service that may fail inside of a year. What do you do? Use the Amfleet 1/2's, rehabbing those that haven't been rehabbed and getting them off to other service.
That said, say 10 years down the line, they do put the Amfleet 1/2's to pasture. Would it be worth turning it into a private car? "Ampads" anyone? It's possible.
What do I hear? The Metroliner cabs? Oh, scrap them.