https://www.techradar.com/news/forget-the-galaxy-fold-we-could-get-the-samsung-galaxy-roll

The issues with the Samsung Galaxy Fold are well-documented, but perhaps the hinged form factor isn't what the future holds for expanding screen smartphones - maybe we'll get something like the Samsung Galaxy Roll (a name we've coined) instead.

That's based on a new patent filing which has been made publicly available, which details a Samsung device with what appears to be a vertically scrolling display which can slide in and out of the handset's body.