Honestly, I think the Cardinal is the most likely use for the new diners anytime remotely soon, if only because it only needs two diners, and if they kept the current meal prep system, operating costs wouldn't have to increase. Amtrak currently has 20 ViewDiners available for service, but between the Meteor, Crescent, and LSL, they're only using 11 at a time. Not to go on another tangent about shop margins, but if they put ViewDiners on the Cardinal, they would have seven cars available as protects, which strikes me as more than enough. I'm not saying it's likely, but I think it's much more likely than adding them to the Star. That said, if they don't put the diners on either, the only difference each delivery makes is that we're that much closer to the sleepers and bag-dorms.