The French boss says Aston Villa's return hinges on a couple of things.
The Villans were relegated after 29 years in the top flight this season as the West Midlands club finished rock bottom of the table, finishing 22 points adrift of 17th-placed Sunderland in the end.
Their plight this season has thrown an automatic promotion bid into some doubt next season, given the way in which so many Aston Villa players seemingly gave up.
It was reported last month (The Metro) that owner Randy Lerner - who paid £63 million for the club in 2006 - was ready to sell up, with a consortium comprising of Villa fans ready to stage a £100 million takeover.
Until that happens, there is a sense of instability at Villa Park, with the club still yet to replace Remi Garde following his sacking in March, and Wenger says Aston Villa's top-tier return could hinge on how quickly the club is sold.
The Frenchman, 66, also suggested that their return could depend on how quickly the playing staff recover from the mental beatings inflicted on them this past season.
"Villa is a club who will be sold, I have heard, so it is down to who will buy it, how quickly, what will be the technical policy of the club and investment, and how you recover mentally," he told Arsenal's official website.
"As most of the time it is very difficult to cope especially a club who has not been used to drop you know.
"How quickly you renew the squad and adjust. But villa should normally stay one year in the Championship."