This is an easy promise to make but remains empty without mentioning the difficulties of such undertaking. Europe has the most splintered incompatible mess of a railway system in the world. They barely managed to run high speed trains between fairly local and established big cities (Paris to Amsterdam). Then there's the problem of routing and adding stops. With a plane you can almost always get a direct flight or a single transfer inbetween. With trains you end up stopping several times wasting energy and time at stations completely irrelivant to you. I applaud the effort and hope it comes to fruition but i'm sceptical wether this is going to be a terrible political undertaking or a well thought out plan for inter European travel.