Apple is reportedly preparing to refresh the iMac lineup next week, though changes expected for the company’s all-in-one desktop are thought to be minor component upgrades and processor speed boosts. According to a report from French Apple blog MacGeneration, Apple will roll out new iMacs at the tail end of next week. Beyond the tentative date, the site’s source — who accurately predicted the recent MacBook Air update — had no further information as to what the refresh will entail. Without a big event or announcement, it is unlikely that a Retina display iMac will see release next week. Instead, the publication believes minor spec bumps like processor speed boosts are on tap, much like the recent MacBook Pro refresh in April.