From what I can get from this, Gen 2 Serval (Nexon) attacks Cellien Queen some time after the original game’s events because she had Original Kyururu hostage. Along with that, the cutscene shown at the beginning of Kemono Friends Pavilion’s intro happened to take place during that time. This means Pavilion’s intro takes place some time after the original game, and not too long before Gen 2 Serval become a Beast.
This was revealed in an unpublished manga by Mine Yoshizaki at Kemono Friends World a month ago. For some context here, Kyururu in Kemono Friends 2 is actually a clone made by Cellien Queen.






