Leeds go to Old Trafford for the first time in six years for tomorrow's FA Cup tie.
United boss Ferguson said: "I don't think they will be too far away from the Premier League in the next couple of years. They look to be an absolute certainty for the Championship next year.
"The motivation that is coming from the manager means they have a great chance of being in the Premier League in the next couple of years.
"I don't have to spell out what Leeds have meant to Manchester United over the years. It would be a fantastic, feisty occasion every time we have met.
"It always carried a degree of hostility which meant we had to tell the players to behave themselves on the pitch because there was no need to add to the problems off the pitch.
"Leeds are bringing 8,000 fans and it is going to be a busy day for the police and it will be a brilliant atmosphere.
"When we used to play Leeds, I used to enjoy the games. The atmosphere was always electric."