I haven’t heard anything about this. I’m inclined to not worry about it until it takes effect though – the pattern with regulation in China seems to always be big talk and no action. I think F-visas have been largely phased out though, it used to be that nearly everyone I knew was on an F-visa, and now I think those numbers are dwindling.
I bet that Shanshui would know better than anyone what the actual implications of this are.