The 31-year-old fell way down the pecking order at Old Trafford last term behind Wayne Rooney, Danny Welbeck and Javier Hernandez and his exit has been on the cards for some time now, particularly in the wake of the club clinching the signing of Robin van Persie from Arsenal this summer.
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However, it was widely assumed that a deal to reunite with former boss Martin Jol, this time at Craven Cottage was all but completed, but Ferguson believes that there could be a final twist in the tale yet before the transfer window closes.
"It wouldn't surprise me if he's at Tottenham," said Ferguson.
"I don't think he's certain to go to Fulham, put it that way. I said last year he’d be leaving the end of the season.
"I don’t know what’s happened. He’s not gone yet. I don’t know anything about it. There’s not been any contact whatsoever from him.
"According to Fiorentina he was supposed to be on a plane, and we thought that too. We thought he was in Italy.
"It’s turned out he’s not in Italy. He could be anywhere to be honest. I have no idea where he is."
The club's chief executive David Gill at the Champions League draw yesterday, though, appeared to rule out any further major departures from the club, aside from Berbatov, contradicting Ferguson, by naming Fulham as his destination.
"There's certainly no acquisitions, as Sir Alex well communicated," Gill told Sky Sports.
"Not confirmed yet but Dimitar (Berbatov) is likely to go to Fulham and there's probably going to be one or two more loans out but we're not working on anything specific at the moment.
"We've bought five players in this window and we're very happy with what we've acquired and we look forward to a very long but exciting season ahead.
Any move would bring an end to a five-year spell at the club for Berbatov, during which he's helped the side win the Premier League on two occasions.