Aaaahhh no , will never happen
Sorry , gotta be some Buck Roger's idea from someone who really doesn't understand how the real world of railroad logistics works.
I always thought we would go back to a Railway Express type container with sliding side doors to be picked up and dropped off daily. But with the railroads eying mega-trains more and more ,these special delivery type dispatches won't happen either.
In my opinion that will be the railroads only way to compete with truck express shipments. But then again that would require more people and individual handlings like they want to separate themselves from.