Oddly enough, a hard release date didn't accompany the trailer, and the series release information remains an ambiguous "coming in late 2019".

New Looks at a Monster Series
Posted by ICv2 on July 22, 2019 @ 2:40 pm CT

San Diego Comic-Con News: Netflix debuted a teaser trailer of the upcoming The Witcher series on Friday at the San Diego Convention Center. There have been a number of teaser pictures of Geralt, Ciri, and Yennefer (see "Netflix Reveals New 'Witcher' Images"), but this was the first teaser trailer to be released. The new trailer shows flashes of the main characters, elves, war, magic spells, and of course, monsters.
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