Loads aren't brilliant, but looking at the fares they are asking over the coming week, yields seem strong. The overall numbers on the route are probably better than the loads suggest.
I'm confident that over time things will improve, but how much time and patience WX can afford to give the route is the unknown. Hopefully enough to make the route sustainable long term.
The summer French flights, charter programme and the introduction of the SSJs are all opportunities for publicity and keeping the airline at the front of people's thoughts.