As for the general style? It'll be set in the modern day and should have the gritty vibe of an "R-rated film," but it won't be realistic. Much akin to Telltale's flagship The Walking Dead adaptation, you should expect comic book art brought to life (with the influences of artists from the past 75 years, the company says). You won't see companions like Robin or Nightwing surface, either. It's far too soon to say whether or not the game will be any good -- we don't even know what villains are involved yet -- but it's evident that Telltale doesn't want to simply rehash the stories from other developers.