I found a bottle of Pepsi Blue a month or two ago that I had saved up in my closet and forgot about. I liked the stuff, but after this many years I doubt it is drinkable, especially since the bottle was no longer rigid, air must have gotten in at some point.
As for Mountain Dew, I do like the Baja Blast flavor, but I had not been in a Taco Bell for so long that last week when I did I forgot about Baja Blast and also wondered why the meat in my tacos was so runny. I think they changed the recipe in response to that lawsuit, which was not an improvement.