"As of now, the season 3 finale was the series finale- BUT the show is still is still on in Europe and Asia, so thier is a chance that it may come back.
If you want more Rex, please write directly to Cartoon Network, get your friends to do it as well! They do respond to fans if thier is enough of them.
GUYS THAT WAS A REPLY TO AN EMAIL I SENT TO "Man of Action" SO GUYS IF YOU SEND AN EMAIL TO CARTOON NETWORK ABOUT BRINGING REX BACK!! WE COULD MAKE IT HAPPEN!!!