teen titans season 6

The creators of teen titans have made 5 seasons and my opinion is that it was the best show on cartoon network.The thing i loved the most was bb and terra she showed in a few episodes but the finale ended questioning everybody because they didn't make another season.I mean why end it like that? we all wanted to know what happened with beastboy and terra eventhough the finale was in 2006 i think and its probably to late to be doing this but teen titans was great.My main questions are why did they end it like that? was terra faking?or did she really forget i hope its not to late because i want teen titans back.