Their site is a bit of a mess. Those new destinations from ANR/RTM are actually one-off charter flights to trade fairs. Hannover for instance is a day trip to the CeBIT fair on March 15th, bookable via a Belgian site.
I guess they might be planning to sell individual tickets on those flights, but I couldn't for instance find any available seats for ANR-HAJ-ANR on March 15th. In the meantime, all those destinations are right there on the booking site without any explanation at all. Mighty confusing.