Managers of the French, Flemish and Walloon waterways are to disclose the canal route at a meeting scheduled in Ghent, Belgium on April 18, inviting interested Belgian, Dutch, French and German businesses.
The meeting page is in French and Dutch only. English is well known for not being spoken enough...
http://seine-scheldt-18april2012.eu/
Of course, it's backed by the European Union authorities. The whole thing is expected to be ready for 2017.