To quote from the above mentioned article:
"The Managing Director aspires to start standardizing the fleet in 2019, with the ATR42 as the selected type to serve all routes besides the islands operations. He is especially concerned about the high costs to keep the Saab 2000s running. "Their maintenance costs are horrific", he said."
I think we can put all speculations about Embraer 120s, DHC8-Q300s, DHC5s etc. to rest.