User blog comment:ADour/Official title for Marvel's The Avengers sequel announced!/@comment-4651179-20130721032030/@comment-1895174-20130721040531

Those are not mutually exclusive. They could try to "cash in" on building a bigger universe, but that should be its own movie and not the sequel to Man of Steel.

Also, it's difficult to say it is "universe building" because it doesn't appear to be within the continuity of any other Batman movie. It's just a Superman movie with Batman in it.