When does Elliott from Earth return?

Elliott from Earth is an animated television series. It premiered in the United Kingdom on March 6, 2021. In the United States it aired from March 29 to April 9, 2021.
Elliott and his mother Frankie travel around looking for meteorites on Earth to further study a 65-million-year-old rock which appears to be from space but lacks a fusion crust. One night, the two accidentally power up the rock, revealing it to be alien technology that can turn into a transport sphere and launch into space. The sphere transports them to another side of the Universe, where they end up on a large space station called the Centrium.