I don't see the need or market for this but the one positive would be running OSX on it which would eventually trickle down or get hacked to work on iPad Pro one way or the other.
The real item that would have my interest is a foldable iPhone Pro Max that folds out to something like an iPad mini with ideally Apple Pencil support.
The real item that would have my interest is a foldable iPhone Pro Max that folds out to something like an iPad mini with ideally Apple Pencil support.