Remember folding display is in its infancy as seen by the troubles of the Galaxy Fold, which saw many display issues that lead to the device being postponed for many months. Apple is known for thin and modern devices, which current folding technology is not. While Apple may be able to create a much thinner foldable device then what is out there already, it is unlikely that it will hold up to Apple's strict design standards.
Remember, Apple has filed several patients for a folding iPhone, but just because a company has a patient does not mean that are actively designing and developing a device based upon them. When do you think Apple will launch a foldable device? Let us know in the comments below or on Twitter and FaceBook @iKillTheApple and on Instagram @ikilltheapple