Michelle Gomez has said that she’ll be returning for Series 9.

Gomez is asked in the new DWM whether or not Missy be back next year and she replies, “Yes.”

Adding: “‘Yes’ is my answer. I’ll be back. Can I say that? Am I allowed? If not… well, I guess we’ll have to see how she’s received…”

The interview also confirms that a decoy version of the reveal in Dark Water was shot in case any members of the public overheard. In this version Missy said she was actually the Rani.

The dialogue was as follows: “You know who I am. I’m Missy. Or, if you’d prefer, Random Access Neural Integrator. Rani for short.”