Board Thread:Questions and Answers/@comment-71.79.101.59-20140402002122/@comment-1219085-20140917044703

Western Gen wrote: I've asked Miles on his tumblr. He didn't respond. While characters like Sister and Meta are probably gone for good, I doubt the writers want to confirm their deaths, because it would mean that the characters would remain unavailable even if the writer wants to use the character a distant future season.

Oo7nightfire wrote: I know there's a cliché about villains falling off cliffs, but no clichés about them surviving it (except maybe the Shredder, who pratically survives anything & everything). http://tvtropes.org/pmwiki/pmwiki.php/Main/NeverFoundTheBody