What I see happening in the next few months/years:
With the upturn, and most legacy carriers finding themselves suddenly short of crew, attrition will skyrocket, as most FO's will not see EZY as a viable long-term employer. If that happens, then no matter how many contractors are pulled in, the operation will fall appart, experience levels will dwindle, safety will be impacted (despite all the BS from H89).
Some FO's are already waiting in various holding pools/looking elsewhere. The problems are only just starting, believe me.