Honestly I'm a little skeptical that it will work out.
They're building custom train cars ($$$) that will generally serve people who are visitors to Paris (otherwise why would you pay extra for a hotel night on a train from a city that you live in, and not fly discount airlines instead?).
The trains will be in operation only 50% duty cycle (the train arrives in the morning, so I suppose it takes the return journey that evening and not immediate turnaround), since the outbound was 13 hours.
I'm guessing the tickets will be quite premium priced to make it profitable.
They're building custom train cars ($$$) that will generally serve people who are visitors to Paris (otherwise why would you pay extra for a hotel night on a train from a city that you live in, and not fly discount airlines instead?).
The trains will be in operation only 50% duty cycle (the train arrives in the morning, so I suppose it takes the return journey that evening and not immediate turnaround), since the outbound was 13 hours.
I'm guessing the tickets will be quite premium priced to make it profitable.