We have already noticed a few days ago that the delivery time for the top-of-the-line model of the MacBook Pro has increased considerably, opening the possibility of it being updated perhaps at WWDC 2015.
But today the French website MacG.go, which has a good record of hits on Apple related rumors, said (Google Translate) that both the 15 ? MacBook Pro how much 27 ? iMac may be updated this coming Wednesday (20/5).
The 15 ? MacBook Pro really deserves an upgrade to keep up with the 13 ? model, which received improvements including the new Force Touch trackpad a few months ago. As for the iMac, the website does not specify whether or not the model with Retina 5K screen; but if it is, it would be his first update since it was released in mid-October last year.
If the rumor is really hot, we shouldn't expect anything too bombastic in these upgrades. Routine thing, really.