Green Bay Packers/Arizona Cardinals Season/Playoff Scenarios?

Alright well I was bored and reading the ESPN playoff scenarios and it has the Green Bay Packers playing the Arizona Cardinals on the Weekend on either Saturday 9th or Sunday the 10th at University of Phoenix Stadium. Well anyways if any of you are Cardinal or Packer fans you know that the Packers and Cardinals play each other to finish of the Regular season on January the 3rd, so if everything stays the same. Would Green Bay even bother going home for a couple of days or would they just spend the week in Arizona??