There was suppose to be a live action movie.
Is a sequel series to Ben 10 (2005) and Ben 10: Alien Force (2010).
The final Cartoon Network original series of the post-Cartoon Cartoons era (2004-2010) and the Dark Era (2008-2010).
In one episode a character is drinking an Alien X themed smoothie. He describes the drink as being disappointing and tasting like filler. This is a reference to the fan reception to Alien X's sole appearance in the prior series, Ben 10: Alien Force.
Unlike the first two series,Ben uses Ultimatrix which has the power to bring out ultimate forms of his transformation, the power which his Omnitrix didn't have