After looking at the picture that seems to be part of the character select screen for a while, I just do not think it is really being blurred out. I mean, if they really did not want us to see something then they would have just cropped the screen even more. While the purple block seem to have a random appearance the white/yellow semicircle surrounded by red seems to be too uniformed to be the mosaicking out of character portrait boxes.
I think most people are just looking for something that is not there, hoping to gleam some more info out of what I think some, not me, would call a lackluster update. This is all just my take though, and I wont mind hearing about the characters that other may see in the screen shot.