The speculation began after a new interview with Henry's on-screen partner Steve McFadden (Phil) indicated that the actress would be taking "time out" from the soap.
After looking into it, though, we can confirm that Shirley fans needn't worry. The "time out" in question ties in with the ongoing Heather storyline, and Shirley will only be off screen very briefly.
An EastEnders spokesperson told Digital Spy: "As part of the upcoming storyline where Shirley discovers the devastating truth behind Heather's murder, Shirley will be departing Walford for a very short period."
Viewers can look forward to Ben's guilt being revealed in the week commencing August 13, which also features Sharon's return as EastEnders makes the move back to BBC One.
As revealed earlier in the week, Shirley's daughter Carly will be heading back to Albert Square for two episodes in September.