Reyes went 2-for-5 with a pair of singles in his third game for Buffalo on Sunday afternoon. He is now batting .364 (8-for-22) in six games between the Bisons and Class A Dunedin.
"We haven't decided anything," Blue Jays manager John Gibbons said after being asked when Reyes would re-join the Blue Jays.
During an interview with MLB Network Radio on Sunday, Toronto general manager Alex Anthopoulos hinted Reyes' return might not come until the club travels to Boston on Thursday for the start of a four-game series.
"We'll evaluate it day by day," Anthopoulos said. "That might change at any time. He feels like he's getting close."
Gregor Chisholm is a reporter for MLB.com. Read his blog, North of the Border, and follow him on Twitter @gregorMLB. This story was not subject to the approval of Major League Baseball or its clubs.