I doubt that FlyDubai will need anyone for atleast 10-12 months from now.
So laid off expats will have to go elsewhere for a while. DEC requirements for FlyDubai are currently the same as EK since they are piggbacking their application process with EK. If there are not going to be providing housing then it will not be particularly attractive considering the high cost in Dubai. But as always if you need a job one might have to take what is available at the time, and keep looking for a better opportunity.