The concept of "Secret 2" has long been in Jay's mind while filming part 1, but due to his many other projects, it didn't materialise; even so, the script of part 2 has been in progress and it has been confirmed that filming will start next year in September. Earlier on, Jay once revealed to the media that other than the crew will be the same as before, the male actors are almost the same lot as well and it is only for the female lead that he wanted "new blood". Worried that the audience has too lasting an impression on Gui Lun Mei and Alice Tzeng in part 1, Jay wanted to change to someone fresh to give a different feel for the audience and the movie as well.
Jay got to know Man Qi through a friend's recommendation and Jay also thinks quite highly of her, her innocent and sweet appeal fits perfectly the style of Jay's requirements. However, the photographer, Kiven revealed too much secrets of "Secret 2" on his blog, like how the theme still links strongly to the part 1's concept of "time travel" and also using the piano score as the time travel medium and the era difference between the male and female lead and much more.
And Jay also caught up with the trend of using 3D effects and will be using it for his movie, creating a "Hollywood" style of a musical romantic movie; nevertheless, Jay's company, JVR didn't deny the project of "Secret 2" but declined to respond to the enquiry of further details of the movie's plot.