I don't think anyone I know believe they wouldn't PR good news. I think that once the rolling review is completed and they get acceptance of the application by MHRA, they will PR it. That is just based on what they outlined at the last ASM. My point is that they will not know when the rolling application process is done until they get the word from MHRA. This application process likely started long ago and when MHRA has no more questions or requests, they will accept the application. I think that because this is a rolling application, the timeline from acceptance of application to approval is a lot shorter than doing it without the rolling application.
As being in a rolling review is not a guarantee of acceptance of the application, I think that any PR to announce that would not necessarily be good news. It would create another chance for the shorts to create their own timeline as to when they expect events to happen.