I have it on good authority that they will definitely be looking at type rated E190 drivers for said positions. There will be some internal movement from the Fokker 100 to the E190 but type rated is of HIGH Priority if they can get it. Cant blame for that, pure business sense and to prevent 2 training events when they only have to do 1 if they can get it..
February is apparently when they expect to be flying and making money of them so as you say there will probably be adverts soon. Border closures are not helping the situation but I suspect they would want to start getting guys on board training by November at the latest to be ready and up to speed.