That one seemed to retreat to the back burner as soon as manufacture of F-12 was outlawed in the US and R134 was introduced.
Saw another "sky is falling" piece recently which claimed the ozone hole had closed too tightly and was contributing to global warming. I'm sorry, I don't have the reference. I just read it and chuckled.
http://ozonewatch.gsfc.nasa.gov/
Fear not we still have people drawing very nice salaries at NASA who are monitoring the ozone hole. I can’t tell if it is still a problem or not
And then they were saying for a while that R134 had the same effect and would have to be eventually replaced. That one sort of died a natural death, fortunately.