certainly should be interesting, some speculation here https://www.t3.com/features/samsung-galaxy-s10e-s10-s10-plus-launch-this-week-everything-to-expect
There was a leaked video , howver probably best not to post that.
Some info on the New Galaxy which may be of interest https://news.samsung.com/global/galaxy-unpacked-2019-full-video-replay New Galaxy-You Tube https://www.samsung.com/uk/unpacked/
Apparently Samsung have plans for a few more foldable devices and whilst there might be a bit of uncertainty that all forms will be successful, clearly see a market for it. Speculation that the vertical folding phone (folds from top to bottom) will be on the market late 2019 or early 2020.