Good and bad if it happens
GOOD:
If it retrogresses , people who filed earlier
get their GC in order of PD , which is fair by all means .
BAD:
But those who were stuck in labour etc , cant file
I485 , because of PD being not current ,
but they can use the new law if 365 days have elapsed
after filing 140. They are also in good shape except
they cant get EAD .
It all depends on how much it retrogresses ...
But from past experience retrogression makes first come
first serve possible (on basis of PD)