New Characters in Sonic Adventure 2?

A site called DC Power posted what could turn out to be the next SA characters:

With the recent unveiling of Sonic Adventure 2 at E3 comes great excitement, but also tons of questions. Well, I have some good news. If you’ve been a long time reader of this site, you’ll remember that I had gotten a glimpse of Sonic Adventure 2 quite a while back before its recent unveiling and I had done a special report on the game. Well at that time there were certain things that I wasn’t allowed to tell you in that report and there are some new things that I’ve found out since then. And now that it’s official, I can spill all the dirt I want! So for starters, there will almost certainly be evil twins to Sonic & Tails. One will probably be a girl bat named “Nails” (I’ve seen the character art for her and she looks nuts). The other is the much talked about shadowed version of Sonic seen at the end of the SA2 promotional video at E3. And for those who love those tasty Chaos, now there will be good ones and evil ones. The good Chaos will be the ones we’ve seen already in Sonic Adventure 1, but the evil ones will be black and have devil tails. Some of the other characters included a huge multi-eyed monster, an angelic human looking girl that floats around all over the place, and another flying dwarf thingy that looks a little bit like Sonic. Weird. Stay tuned, because if there is any more Sonic Adventure 2 rumors, you can bet I’ll be on top of it!

We are not quite sure of this yet, so check back for further information.