I am relying on static launch images when developing my iOS apps, that being said, I need to declare and provide launch image files for every combination of physical resolution, logical resolution and scale factor. That list of possible combinations is getting too long and I would like to remove the support for non-Retina devices, what covers iPhone and iPad models. I wonder if it is going to cause the app to be rejected by the App Store team. I would like to mantain support for only Retina devices (as my custom framework supports only iOS10+ devices), for example, the ones mentioned in the Human Design Guideline (https://developer.apple.com/design/human-interface-guidelines/ios/icons-and-images/launch-screen/), is it possible/supported?
The list of supported devices will be:
Yes. Sort of. It's about 1x/2x emulation on iPad. I'd worry about how it looks to app review in that example. Keep in mind no one here can promise what they will/won't approve and there are no pre-reviews. Be sure to test before distribution.
Just remember, Apple expects devs to primarlity support iOS versions...not devices in particular, so be careful to align your goals w/their's.