The Saints won't have to wait long to replace Drew Brees with another Hall of Fame QB ... 'cause will Will Blackmon tells TMZ Sports Aaron Rodgers is heading to New Orleans next season.
"Next year," Blackmon said, "Aaron Rodgers will be a New Orleans Saint."
Blackmon's prediction is a bold one ... but it's not necessarily uninformed -- you'll recall, the former NFL defensive back was teammates with Aaron in Green Bay from 2006 through 2009.
And, Will tells us he still has a good relationship with Aaron .