Mentions of the resizable iOS apps seem to signal a desktop dock mode, which ties into your concern.
We know Apple is bringing a folding iPhone through manufacturing leaks. A desktop mode is less likely to be leaked, since it would be mostly software and (a lot) less reliant on third parties.
> a desktop dock mode
This needs to come to ALL iPhones. You plug in a usb c cable to your monitor and bang, iPad Neo.
But Apple being Apple will software block it...
I doubt it (though I would love this as well). FTA:
> A third discovery was arguably more specific: a new system key that returns the total count of *built-in* displays on a device
(emphasis added)