In order to throw out a WAG on the split ratio I would have to take a WAG on what the pps will be when they enact the reverse a couple months out which I have no clue.
Most likely ACT will decide how many Outsanding shares they would be comfortable with. Right now the 1:80 reverse puts us at only 25MM OS which to me seems pretty thin.
It doesn't appear to me they don't expect the pps to do much in the near term when they at minimum show a 1:20 split. Really not sure why they did that, all they need to say was "reverse split up to 1:80 which covers everything...
News 
Market Data 
Discover 
