"Perhaps the last major holdout of such applications is with the category of games, and even there, the emergence of a few consistent tool-sets such as the Unreal Engine means that there's increasing convergence on the technical components, with Agile really only living on in areas such as design and media creation." - In practice, I haven't seen the use of Unreal Engine promoting the end of agile or vice versa. If what he's saying here is that using off the shelf game engines means no more need for programmers so no more agile (except for content) then he's dead wrong. Every game that I've ever worked on using Unity or Unreal have a significant amount of programming work involved. Some of them have used agile and others less so.