The new drama 使徒行者 will start filming in January with Charmaine Sheh's return to TVB. It will also star Michael Miu, Raymond Lam, Elena Kong, Sharon Chan, and Sammy Leung so far. It will have a gangster theme and will be produced by Man Wai Hung.
(This should be the series that Tony Leung Ka Fai was originally going to film before he pulled out due to an injury. It was originally called 只爭朝夕and was supposed to focus on the police, so I'm not sure how much of the script is changing.)