With PA....they will be able to compare the vote totals of the outter counties with 2016. I think you will have a pretty good feeling before the Philly counts start coming in. I think they increase that early lead by a good amount and Philly once again will not be able to pull through for Dems. If Trump is for whatever reason under performing 2016 we have to start banking on another state.
I was talking about the state of Delaware. Improbable win, but not impossible.
IIRC, all of Philly came in early last year. I remember being up at 2am watching the returns come in and there was no way for Hillary to come back in PA because all that were left to count were some rural counties and all of Philly had reported hours earlier.