I know Drexel is definitely a no-email, no-call, no-snailmail interview inviter... the only way to know is to keep obsessively checking the status page.
West Virginia sends snail mail
I'm not positive, but I think Temple and Jefferson have a tendency to update your status page first and USUALLY send emails, but not always.
Lesson learned: Philly schools are the ones that you need to keep obsessively checking!