This is a rumour network, right ?
Okay, this is what WAFN (http://www.wafnews.com) says:
Sabena
- A320-family: 14 orders to be cancelled
- remaining B737s ('don't know how many left) are maintained in the fleet
- some Avro85 & Avro100 will be replaced by smaller ERJ-135 & ERJ-145.
- all A321s (3) will be sold to the Belgian Air Force to replace their A310s (glad I'm not paying taxes over there, they just bought 2 ERJ-135LRs)
Sobelair
- disposes one of its B737-300
- replaces/supplements its B737-400s with B737-800s or B757s
- replaces its B767-300ERs with B757s.
I guess we could say that Sabena finally choses the aircraft they always wanted to operate: Boeing planes (bye-bye Flightlease).