Impossible to say, if any go at all. Three routes dropped in two years must be the lowest since the turn of the millennium. Some may swap airports as with Oslo, but that's not really the same thing.
If you consider the direction of the company there are still lots of provincial French destinations and minor cities that on paper would be vulnerable. Based on yield, LUX constantly seems to be available for £20 return which may indicate poor performance. But ultimately financial support and incentives will win out, a route averaging 140 pax with low fares could stay whereas another that is constantly full could go.