Well, HBO usually focuses on creating unique and thought - provoking science fiction. It could involve complex characters dealing with extraordinary situations. Maybe it'll have elements of time travel, like characters going back and forth in time to change the course of history in a fictional universe.
Often, HBO's science fiction series have strong visual elements. So, in the upcoming ones, we might expect stunning visuals of futuristic cities, alien landscapes, or advanced technology. They may also explore social issues through the lens of science fiction, like how a society would function if everyone had access to mind - reading technology. This could make for some really interesting storylines and character development.