I just skimmed your page, but I think you may have a little "old light" in there. The JWs have essentially stopped pushing the 7000 year "days" of creation and gone to a more traditional old-earth creationist teaching wherein each day could be any number of years and merely represents a time period in which god's activity was focused on a certain thing.
Not long ago there was a CO that talked about the fact that the universe was 13.8 Billion years old. I think most of the CO talks are pretty rigid, now, and the 13.8 billion years old bit was a fair portion of the point of the talk, so I think this is being officially acknowledged.
Another fun teaching that I don't think they've ever officially backed away from (though it hasn't been mentioned in a very long time) is that the obviously carnivorous dinosaurs that have been found had large teeth, not for chewing meat, but for ripping the tough bark off of trees. Because we all know how much nutrition there is in bark, it seems perfectly feasible that a t-rex could've sustained itself by eating bark when it seems to have been perfectly suited to eating other dinosaurs.