Not sure how much faith id put in to a press release note like that. Seen plenty of press releases about showcasing screens at an event with an expected release date on it, then nothing comes of it. Just look back at what happened with all the dates for the 27GL850 and this 38GL950GUpdate on this: https://www.displayspecifications.com/en/news/0aea206
Confirmed to go on sale "by end of 2019" in South Korea. Sounds like probably Q1 2020 then for the rest of the world?