I doubt they'll announce anything on a Sunday, though I'm actually not sure when "next week" was meant for. It's poss Tiana thought the interview was being published a day or two later, so corrected herself to reflect that. Or an editor could have changed "a couple weeks" to "next week" if he/she thought the same thing. Could be a missed "deadline" if they don't announce today, but the wording/intention isn't 100% clear to me. It's further not even clear whether "the week" begins on Sunday(calendar) or Monday (work).

Anyway .... my guess is the announcement will come tomorrow/Mon or Tue during the Money 20/20 panel.