On just an opinion, I seriously doubt it. I know, on one hand, the airlines would love to just hit the reset button on those furloughed that don't meet the new requirements because the new guys will be cheaper.

On the other hand, I don't see any possiblity that they won't, AT THE VERY LEAST, let you keep your number and let you come back when you have the time.

Personally, I'm seeing grandfathering language that will protect most (ie. if you currently have 500hrs or more as SIC in type before a certain date.)