The 5G variant of the Samsung Galaxy S10 will be released in South Korea on April 5, 2019. A news outlet in that country has claimed to have uncovered pricing details on this flagship option. It will start at the equivalent of about US$1285.
https://www.notebookcheck.net/The-Samsung-Galaxy-S10-5G-s-price-has-been-set-in-Korea.415327.0.html