I wasn't too sure because at first i know the guy was ok'ed by Reddit but a couple of things did seem a little odd to me, such as the suggestion that the iMac was going to have a light up logo
however a couple of things were correct such as the Homepod description and the iPhone so i was willing to give the benefit of the doubt.
Personally i do hope they redesign the iMac, Apple tend to do so every so often it won't be drastic i don't think the last redesign wasn't (in 2012 when i got my iMac) it was made thinner on the side. This time around i'm not sure what they will do but it would be nice to see, especially since i'm waiting to upgrade.