One of the on-going complaints that fans of DCs poster boy have levelled against Rocksteadys award-winning take on the Batman franchise has been the use of the Bat-Signal. That iconic light cutting through the darkness of Gothams icy night which alerts the citys saviour to crime is one of the few aspects of the Batman universe which Rocksteady hasnt hit out of the park. In the first three instalments into the Arkham series, the uber-recognisable beam of light was used as but a marker to guide the Bat from way-point to way-point. In the trailer, once Scarecrow has finished his open-threat to Gotham, we are shown a lingering shot of the Bat-Signal cutting through a rainy skyline. Though we may be jumping to a hopeful conclusion here, is it really that unfeasible to suppose that in their final romp in Arkham, Rocksteady will finally give the Bat-Signal the treatment it deserves? The Bat-Signal could be used to fantastic effect to introduce emergent gameplay elements rather than be used to give waypoints a layer of lacquer. Imagine if the Bat-Signal was used in the same way as the dragons in Skyrim, to trigger side missions or even progress the narrative. The signal has a decent amount of airtime in the trailer so there is no reason to suppose Rocksteady hasnt amplified the role it plays in their blockbuster game.