The Samsung Galaxy S10 is still probably months away from release. However, this has not stopped the case-maker Olixar from designing a whole range of cases for it already, or the e-tailer site MobileFun from posting a product page for them, prices and all. The Galaxy S10 in these images appears to mimic an earlier leak.
https://www.notebookcheck.net/Online-store-has-posted-a-page-for-Samsung-Galaxy-S10-case-preorders.376816.0.html
Can't rule out the horrendous upper right side square notch from this render...