Check the PA Table games subject in Poker Legislation. I, among others, have been keeping tabs on all the petitions that the casinos must file with the Pennsylvania Gaming Control Board, all available here,
http://www.pgcb.state.pa.us/?p=170, all of which contain complete breakdowns of what table games each casino is wishing to install.
So far, Parx has not petitioned for any poker tables. Their petitions speak of a "Phase 1" which involved the pit games. There's no sign of when "Phase 2" would occur.