According to her longtime manager, Larry Rudolph, it's possible that seeing the singer onstage may "never come again."
"As the person who guides her career -- based on the information I and all of the professionals who work with her are being told on a need-to-know basis -- from what I have gathered, it's clear to me she should not be going back to do this Vegas residency, not in the near future and possibly never again," he explains, adding that putting her Britney: Domination show at the Park Theater at Park MGM resort on hold before it even began was "the perfect storm."
"We had to pull her show because her meds stopped working and she was distraught over her dad's illness," he continues. "Last summer, when she wanted to tour, she called me every day. She was excited. She hasn't called me in months. Crickets. She clearly doesn't want to perform now."
Rudolph tells ET that he has "no desire or ability to make her work again," unless it's something she really wants to do... and that she's ready.
"I don't want her to work again 'till she's ready, physically, mentally and passionately. If that time never comes again, it will never come again," says Rudolph, who first spoke with TMZ on Wednesday. "I am only here for her when she wants to work. And, if she ever does want to work again, I'm here to tell her if it's a good idea or a bad idea."
Rudolph later clarified his comments to Billboard, saying, "Other media sources seem to be picking up my quotes to TMZ as implying that Britney will never work again. That’s not what I said. I simply said that the Vegas residency is now officially off and that she hasn’t called me in months to talk about doing anything so I’m not sure if or when she will ever want to work again. It’s that simple."
"As I said to [TMZ's Harvey Levin]: I have one role in Britney‘s life. I’m her manager," he added. "She calls me if and when she wants to work. Other than that I’m not involved in anything else. Not the conservatorship, not her medical treatment, not her kids. Nothing else."
ET learned in early April that Spears had checked herself into a health facility to deal with the tremendous stress she's been having over her father's current health crisis. The check-in came just a few weeks after she put her career on an indefinite hiatus, postponing her album in addition to the Vegas residency.
"I am dedicating my focus and energy to care for my family," she said in a statement at the time. "We have a very special relationship and I want to be with my family at this time just like they have always been there for me."
Not long after fans learned that Spears had been checked into a health facility, rumors began swirling that she was being held against her will and a hashtag, #FreeBritney, quickly went viral. More on that in the video below.