Heres a little exert from the interview with Marv Wolfman, who is also was a writer on a legendary run of ''Teen Titans'' and the multiverse-spanning "Crisis on Infinite Earths," which featured nearly every character in the DC universe and set a benchmark for event comics. He is also co-writing a long side Geoff Johns in writing DCUO.
"I had the same exact problem when I did a book called Crisis on Infinite Earths. That was aimed, very much, towards Marvel readers at the time, to try and show them how many great characters DC had. And you have to walk a very fine line where you are not disappointing any regular DC fans, but you're trying to make the characters clear enough for others."
For the full interview click the link below
LINK
http://www.comicsalliance.com/2010/11/10/marv-wolfman-dc-universe-online-interview/