A few days ago, Apple released the 24-inch iMac with an M3 chip, and many are expecting Apple to bring a larger model to fill the gap in the lineup. Over the past two years, Apple has discontinued the 27-inch iMac and iMac Pro, which are powered by Intel's x86 processor, and has not released a replacement.
In a recent interview with The Verge, Apple PR representative Starlayne Meza denied plans for a 27-inch iMac with an M-series in-house chip, stating that if users have a need for a large screen to use, they can consider purchasing a Mac Studio or a Mac mini and using it with a Studio Display instead of considering the All-in-one design.
Apple's statement likely also means that the rumored new 27-inch iMac Pro with a homegrown chip won't necessarily appear, and the 24-inch iMac will be the only remaining all-in-one in Apple's lineup, at least for a while to come. There is speculation that Apple may have changed its product plans for the iMac and iMac Pro, perhaps related to declining sales of the Mac line.
It's also unclear how long this is Apple's product plan, and we can't rule out a new product with the same display size, or even a larger screen, in a few years. The recently leaked Apple OLED product roadmap suggests that Apple will have a number of OLED versions of the iMac in the future, with a maximum 42-inch screen. Before that, Apple may also have new products with mini-LED displays, such as the 32-inch iMac, which has been rumored to be released in 2025.