What I’d like - an iPhone that uses a M1 or M2 chip, and has enough storage to run a full OS-X implementation on it. Use it in phone mode, or in reduced power (slow) mode, run Mac apps. - or if you want the full “Mac” experience, plug it into power and with a wireless keyboard and mouse you have your entire computer there and be able to share the output to a full-size monitor wirelessly.

That said, it would come to an iPad first, but I can dream…