The official website for the That Time I Got Reincarnated as a Slime has announced when the second season of the anime will premiere.
Details are scant at this time, but the announcement does confirm studio Eight Bit will return to animate. A piece of art was also created to celebrate the announcement. You can view that below.
Bundled with the official manga, the first part will ship with the 14th manga volume on March 27th. The second part will be bundled with the 15th volume on July 9th, and the final part will be bundled with the 16th volume on November 9th.
That Time I Got Reincarnated as a Slime will premiere Fall 2020 in Japan.