Queen Elizabeth II and Prince Charles
Prince Charles will have to wait for another 10 years before he can take over the monarchy because Queen Elizabeth II will never abdicate. Pictured: Queen Elizabeth II and Prince Charles during a visit to the Chelsea Flower Show on May 18, 2009 in London. Getty Images/Sang Tan

Prince Charles may have to wait for a decade to take over the crown.

According to royal expert Nick Bullen, it will take more years before the Prince of Wales becomes the new king because Queen Elizabeth II will never abdicate. In fact, Her Majesty has renewed her interest in the monarchy.

"I think the Queen sees what those boys and their wives bring, I also wonder whether she even throws forward to the great-grandchildren," Bullen said to Yahoo New's "The Royal Box." "Princess Charlotte, already at the age of 3, knows how to work a crowd. Maybe now through her grandchildren, she can see a way of just staying on the crest of that wave."

Bullen noted that Prince Charles, 70, might be more than ready to take over the crown, but the Duke of Cornwall might be 80 years old when he actually becomes king. "Her mother lived to 101. The Queen is there for the long run…she could live for at least another 10 years," Bullen explained. "She's seen it all, she's done it all, she is the ultimate working mother and working woman, and I don’t think she's going anywhere, anytime soon."

However, according to Nicholas Bieber, a journalist for Daily Star, Prince Charles will be "king very soon." In fact, a big changeover is expected to happen in three years.

"And just this week major preparations were already being ramped up in the run-up to the big takeover on April 21, 2021," Bieber wrote on the week Prince Charles celebrated his 70th birthday.

According to reports, Queen Elizabeth II will trigger the Regency Act that will grant Prince Charles full power to reign even if she is still alive.

"In truth, with the Queen now well into her tenth decade, senior officials within the Royal Household confirm that Prince Charles is effectively already our 'Prince Regent', a king in all but name," Robert Jobson said.

"She will, they say, officially transfer all executive powers to him as Prince Regent until her death, when he will become king. This would enable her to fudge the issue of her not fulfilling her Coronation Oath to God and her people to serve as queen regnant until her death."