The bus where Cat Noir and Ladybug attempt to trap Animan has a board of Mireille and Aurore in some of the shots.
What happened between Alya and Nino while they were stuck in the cage will be seen in upcoming comics, and in a Season 2 episode.
The episode references many movies with dinosaurs and Kaiju destroying a city, such as Jurassic Park (1993) and Jumanji (1995).