If you are an ex-Northwest elite (Gold or Platinum) and you use your old Northwest elite number on the reservation and the flights are on Northwest metal, then yes, the EUA still works 1 day out and if you do not clear, then you will be put on the list via the kiosk. 2 out 3 eligible legs have cleared for me since the end of the WorldPerks program ended. LAS-DTW on October 26th, DTW-CLT on November 19th, missed CLT-DTW on November 23rd, but was on the list (verified via the upgrade and standby list on nwa.com.
My guess is this will last until the end of PARS and the switch to Deltamatic which I was told at DTW last month will be early next year.