Samsung has recently (March 11th) applied to patents for a foldable phablet that was before rumored to be launched at CES 2016 , and it did not happened. However Samsung is really working on this type of mobiles and very hard.
As you can see on the pictures below those are the most recent draws of the foldable phablet presented in Korea
Samsung in their ANALYST DAY 2013 showed an schedule for foldable mobiles from 2016 to 2017 as time of Technology development.
Maybe is the year 2018 the real time for final ended working world`s first foldable smartphone presentation and the beginning of a new era on mobiles. Sure thing the format Samsung is showing on the above pictures are just of one of them.
BGR via galaxyclub nl