Oh, if only that were true. It is a wonderful, beautiful dream filled with better costumes and more likeable characters.
If you really think about it though going back want really change anything, because the titles that were good before the change are still mostly good and the titles that were bad before the change are still bad.
Batman and his line up of book are as good if not better than before the DCnU took effect. Same thing can be said for the Green Lantern line.
Justice League was and had been one of DC's worst books before the change and even though it's bad right now it is no where near as bad as before.
If things went back to the way they were before we would lose really good books like Animal Man and Swamp Thing that didn't exist before the change over to DCnU.
So while yes some of the things right now are pretty crappy with DC's current line of books, but just because some are bad doesn't mean the entire line should be scrapped and then put back into the same stagnant, stale, and boring books we had before.