Lately there has been speculation afoot regarding the character Tom is playing in the upcoming HBO series. David Harris mentioned a certain possibility in an article about the series, and the information subsequently appeared in the IMDb listing for the show and on Tom's page as well. The character he is rumored to be playing is Marcus Maez, aka Mime, who appears in the Doomsday Clock series, a sequel to the original Watchmen. He and wife Erika Manson/Marionette (possibly played by Sara Vickers) have a terribly tragic backstory, and it would certainly be an exciting departure for Tom to play. No official announcement has been made from either HBO or Damon Lindelof, and no trailer has been released. So it seems very possible...but the production is shrouded in so much mystery, nothing should be taken for granted. 

There is also still no official release date beyond it definitely being in 2019. Watchmen news has been slow to come, but with Game of Thrones ending imminently, HBO will hopefully throw its considerable promotional weight behind this new tentpole series soon, and we'll find out more about the characters and their storylines. The tiniest new glimpse of the series was released last Sunday, in the promo below.