Only time will tell. I.M.H.O. manufacturers maybe waiting for a whole train"set" by Amtrak and possibly some commuter lines/ via rail before committing thousands of dollars to make the viewliner style of cars. Seriously, look at Lionel making the HHP8 only to find out the hard way that Amtrak and Marc Commuter we're the only ones who purchased the locomotive and in it's short 15 yr lifespan, only had one paint scheme for each rr. Now what? Fantasy paint to make up for the tooling costs?
If you want one badly, you can always scratch build one and/ or have someone scratch build one for you. Plans are available in various model railroad magazines.
