Japan is in the middle of building a very long maglev line, what about it is supposed to be not at all ready?
There's still no point for a 10km intracity line, but for important long distance routes it seems like the best way to kill flights, though we'll see how it works out for japan whenever they finish it.
It solves the problem of long travel times if you're not flying. Not in this case of course, but in general. Even a straight line HSR line from e.g. Hamburg to Munich could never compete with a plane. Maglev could.
There are plenty of caveats in the additional requirements for higher speed trains, but there is a reap problem to be solved.