That's semantics and speculation:Apple said there will not be a new 27 inch imac.Apple is working on a larger than 27" imac.
Apple has maybe stated or strongly indicated that no new 27" iMac is coming. But that is in no way the same as them stating that a >27" iMac is coming.
It's this way of talking about tech rumors that has people constantly bringing up the same rumors when they've already been debunked multiple times over tha least couple of years.
I use to defend Gurman and his peers. But I'm really starting to despise how they keep stories alive just because they are click-magnets when there's absolutely nothing new to talk about.
Neither he nor any other leaker has anything on a new 27" or 27"+ iMac. It's all speculation as of now.