no, no, nO, nO, NO, NO! This is the entire industry grasping at straws in an attempt to come up with something new now that the smartphone has matured into a standardized form. EVERYTHING that bends eventually breaks. It’s written into Einstein’s field equations for General Relativity.
Instead of trying to make a folding phone they should just make one that rolls up but can be used rolled up like a banana. It could roll screen in or screen out to suit how you want to use it
But... we might see Apple Glasses first, which could be the next step beyond smartphones. Any true Apple fan knows they are busy working on how to disrupt their own killer product before a competitor does.