Now having seen it, I am a little disappointed we can't get a true sequel to the film, and by that I mean another solo outing for Supes, I think Henry Cavill made a great Superman/Clark Kent and would love to see him be able to expand in the role. I have no doubt a great story can be made with Superman meeting Batman, but part of me will always be wishing it could have been a solo outing.
I felt that way at first. But the more I thought about it, the first "Man of Steel" had Superman teaming up with a number of characters to stop the bad guys. They just weren't wearing any capes. I'm sure Batman will feature more into the story and command more presence on screen than Superman's human allies in the first film, but I imagine (and hope) that the next movie will be along the same lines.