For a company that has repeatedly ignored macOS, your wishlist seems anything but a pipe dream. QSFP on a mac. Yeah right. If anything, they’ll double down on TB or some nonstandard interconnect.
What is a computer?
(Although, I do hope with the new work on supporting RDMA, the MLX5 driver shipped with macOS will finally support RDMA for ConnectX NICs)
https://kittenlabs.de/blog/2024/05/17/25gbit/s-on-macos-ios/
QSFP makes sense on a MacPro platform - and might be where Apple chooses to differentiate (one could dream of an M5 Mega, with four chiplets). The Mac Studio is a general purpose compact workstation that doesn’t need ludicrously fast networking beyond what 10Gbe and TB5 offer. It’s already overkill for the vast majority of users. Top configuration Studios are already a niche product.
Apple already ships an MLX5 driver for ConnectX NICs.
Also given that Apple are using these in their datacenters I think they will ship much more server like hw.