I saw the new Into at TGS. In is not an anime opening like the DC version of 98. It is just random still shots of character artwork. Personally I like the original intro better than the new one they came up with.
I don't think it was a test inro, and I recognize the picks in that flyer and that was part of the intro. It was just not an anime intro like the DC version of 98. We'll see soon enough since it's coming out soon.