I still haven't seen the 2009 TVB series Beyond the Realm of Conscience 宮心計 but I certainly remember how it was all the rage back then putting Charmaine Sheh and Tavia Yeung literally everywhere.
It is epic like the palace drama War and Beauty and often likened to the Korean drama Jewel in the Palace, so I guess it shouldn't come as a surprise that a sequel is in the works.
TVB and Penguin Pictures collaborates to bring a grand production with fancier costumes and more expansive location shoots. Heck, even the press conference is sizeable than normal like a giant wedding of sorts.
The series still takes place in the Tang Dynasty with a mostly new cast starring Steven Ma, Nancy Wu, Kenneth Ma, Annie Lau and Chrissie Chau. Granted bigger doesn't always mean better so we'll have to see how it fares.