First off just wanna say I'm glad they finally let the Nurse Ratched at least get a name! Okay now onto the reason for this post. I was snooping around twitter and might of stumbled across the fact that Nurse Ratched will be back this season!
Ingrid Torrance was possibly on set on Sept. 19 and Sept. 27. According to this tweet, this might mean she will possibly make an appearance in 5x07 and 5x08 (or) 5x09.
The premiere was really good and glad to see that a lot of good characters like Ruby and Mulan will be back this season. Looking forward to it! :)