In essence, there are three possible new designs, according to the patents found by LetsGoDigital. Two of which are similar to the design of the upcoming Galaxy Fold. They both have the hinges across its length, folding into a thin device. The notches on the main display are shifted to either the left or right.
The third one folds differently, across the width of the device. When folded, the secondary display on the outside is squarish in shape. The notch on the inside is also in the middle of the top bezel. Beyond these details, nearly everything else is similar between these three models.
All that said, patents don’t necessarily end up being consumer products. Even if they do, we should probably be waiting for the first Samsung Galaxy Fold to hit shelves first.