Redknapp's side are aiming for a return to the Premier League through the playoffs, and the QPR boss believes that their success will determine which players are targeted at the end of the season.
"People are ringing me up saying, 'What are you looking for next season?'," Redknapp told the Fulham Chronicle.
"I haven't a clue because I don't know what league we'll be in.
"If you get promoted, you're looking at players who will keep you in the Premier League, it's a different scene."
QPR host Millwall at Loftus Road on Saturday afternoon.