Ok.
I am a Robin fan, especially of Tim Drake's Robin.
However, I think that Robin is somewhat problematic of a character for Nolan's series.
First of all, in Nolan's World, which is very close to our world, if you are using a teenager under the age of 18 that is child endangerment and regardless of how "skilled" he may be, its just irresponsible for Bruce to even put himself in that position. This isn't a game. Even Batman himself faces the possibility that he won't make it home alive on any given night.
Second, Batman is a grown man who has been preparing for his one man "war on crime" for a big portion of his life. (In Nolan's movie I think Bruce has been training for at least 10 years at the time of BB.)
It seems like an complete insult that the audience is suppose to buy in to the belief that some 13-15 yrs kid can come in an be on par with Batman, just because he has some acrobatic skills.
Its also an insult to Nolan's Bruce Wayne.
What Batman is able to do as the Dark Knight Detective should be near impossible to duplicate by anyone else, especially by a kid who has been trained even by Batman for only a year or two.
I know it works in the comics, but movies are a different medium.
Is it impossible for it to work?
No, I don't think so.
Is it worth the box office risk to try to make it worth?
Well, after the laughfest of Batman Forever and the complete and utter embarressment of B&R, I just don't see WB or Nolan taking the chance.
I highly doubt we will never see Robin in a NOLAN movie.
Is it possible that Nolan could do a little foreshadowing in the 2nd sequel by adding Dick Grayson to the cast?
Yes, possible, but highly unlikely based on previous comments about the character.
I think we will see Robin back in this series when WB runs out of ideas of stories for Batman. That is traditionally, what Hollywood does when a T.V. show or movie franchise begins to run out of steam. If you have to do that, its just time to shut it down.
In other words, adding kids to a storyline that didn't really have a place for them originally, is the beginning of the end.
So lets hope that the Batman series can remain strong to where producers don't even feel a need to resort to a comic book character that just doesn't fit into the world that Nolan created.
I'm sure by the time when Robin is added, Nolan's vision will be dead anyway.
Plus, I still think there are countless movie that can be made with just Batman that would still remain Box office gold if the commitment is there.
Bond is still going strong after 21 movies...and they didn't even have to resort to giving him a Junior Partner!!