Do you mean the third terminal in Perpignan? Yes, in service since 2007, with the other end in another new terminal in Bettenbourg in Luxembourg. Recent news:

Rail motorways to serve Spain and Sweden - Railway Gazette

EUROPE: Announcing the rebranding of its 'rail motorway' business as VIIA on June 7, SNCF Geodis said that its Perpignan - Luxembourg service is to extended to Helsingborg in Sweden later this year. A southern extension into Spain is also being planned, following the successful conclusion of initial cross-border tests to Llers on June 3.

The Perpignan - Luxembourg service carried 50 000 semi-trailers and swap bodies in 2011, with the increase in maximum train lengths to 850 m providing a 33% increase in capacity on the four daily return trips.

I don't want to quote the entire article, so I paraphase another part related to something discussed upthread, loading gauges: they mention the modification of the tunnel at the France/Italy border for the extended GB1 profile.

Further routes are planned:

• from Irún next to the French border on Spain's Atlantic coast to Paris and Lille (this one would be extended across the Chunnel), which is on the agenda since 2009 but its start was delayed from 2011 to 2014 (they need to work on eight tunnels along the route); however,
  
• it's this month's news that SNCF wants to run from the Ruhr Area in Germany to the Swiss/Italian border by 2015 (which would be the first line completely outside France).

_{*Lunatic*, n.
One whose delusions are out of fashion.}