Ferguson is set to hold a press conference on Tuesday to officially launch his new book. It is expected to contain some typically forthright views on a variety of topics and personalities in the game, including memories of his long rivalry with Gunners boss Wenger.
The pair have been through their fair share of confrontations - including the infamous 'Pizzagate' episode at Old Trafford in October 2004 where representatives from both sides were involved in an ugly fracas following the end of Arsenal's unbeaten run after 49 games.
The relationship between the pair mellowed in the seasons before Ferguson's retirement but Wenger will be just as keen to know what revelations are included as the rest of the football world.
"We all fear the worst!" Wenger said at Monday's press conference ahead of the Champions League tie against Borussia Dortmund.
"I think it is good that he makes a book.
"Maybe he does not have enough time to think about his whole career, it is a bit short between the moment he stopped and the moment he brings his book out.
"But maybe there are some other books coming later, so it is an autobiography there could be two, three or four (versions) of it."
United have failed to be consistent under new manager David Moyes, with the 1-1 draw against Southampton on Saturday leaving the Red Devils down in eighth place.
Wenger hopes people will not continually look back to what Ferguson achieved and instead look to the future with optimism for more success.
"You do not want his personality to be a handicap for the club, you want him to be remembered as someone who has done extremely well for the club," Wenger said.
"It is rather to be a positive influence on Manchester United."