A daily Cardinal is a long way off. Even if all of the other conditions were met, Amtrak does not have enough qualified crew members to operate the train between Huntington WV and Charlottesville Va.
The length of the run requires 2 engineers in the cab. With the current schedule, each crew makes 3 one way trips per week.
On this schedule it currently takes an engineer almost 2 full years to get qualified.
This is ludicrous. 300 trips (in a given direction) along the route to be qualified? Absolutely absurd. No sane country in the world would have this regulation, because it's ridiculous. They don't have this rule for truck drivers, and for them it's much more important to know the territory. Abolish the rule, it's dumb. (Actually, in areas with cab signals and PTC and quiet-zone crossings, you barely need engineers at all.)
That said, there won't be enough spare cars for a daily Cardinal for two years anyway. New Viewliners are needed, and with urgent profitable opportunities to put them on other trains, there are unlikely to be enough before late 2016. And new coaches are needed; the only likely source of those is the Horizons, which won't be displaced by the new bilevels until 2016 either.
If Amtrak got started now, it would be easy enough to qualify engineers by 2017. If necessary, send 'em on CSX & BBRR freight trains to speed up the traning. Perhaps this is something which NARP could advocate for; if it really takes so ludicrously long to jump through the FRA hoops, Amtrak needs to get started qualifying engineers now.