What if the premier of Harry Potter and The Deathly Hallows-Part 2 is not the end? What if there are more Harry Potter movies coming?

It is my baby and if I want to bring it our to play again I will, JK Rowling told tens of thousands of fans at Trafalgar Square during the premier of Harry Potter and the Deathly Hallows-Part 2.

Rowling said this may not be the end of the Harry Potter series. Even though she does not have a clear plan as to when to continue the legend, she said she would never say never, reported The Telegraph.

Since its debut, Harry Potter has enjoyed unprecedented success. Lovers of the young wizard from across the world filled the square in central London and spilt over to the surrounding buildings. By the time the stars walked the red carpet there were so many people that police had to close nearby roads and to keep crowds away.

The first book in the Harry Potter seires was published in 1997, with a merely 1,000 copies printed. The book became a quick sucess, and now, seven books later, there have been 450 million copies sold, all have been adapted into films and translated into 67 languages.

The films have grossed more than $6.4 billion at the box office, and launched the young stars from obscurity to global fame.

At the premier, the stars who brought Harry Potter and his friends to life expressed their mixed feelings.

Emma Watson, who played Hermione Granger, said the role has changed her life. Hermione's been like my sister; she feels so real to me, she said. I will miss being her. That is devastating. She has pushed me and made me a better person.

Daniel Radcliff, who portrayed Harry Potter, said: It is a moment when you have to let yourself sit back and think that this pretty damn cool. There is a little sadness but generally speaking it is a day to be elated.

Rupert Grint, who portrayed Ron Weasley, said it was emotional to see the final film. Every film has been just so special, he said.