From the visual, it looks like the main characters will be heading to Oshimai City, as featured in the conclusion of the original manga. For those hoping for more information, it was announced that more news will be coming in November, so keep an eye out!
A gag series created by mangaka Asou Shuichi, The Disastrous Life of Saiki K. follows the unusual life of high school student Kusuo Saiki, who is gifted with various psychic abilities. It was serialized in Weekly Shonen Jump from May 2012 to Jul. 2018 with 26 volumes total. The anime adaptation also came to a conclusion in Jun. 2018.
(c)Asou Shuichi/Shueisha・PK Academy F