While the JW's have backed away publicly from the earth is only 6000 years old and they do admit that the earth is however many billions of years old, they still hang onto the idea that life and the creative days in genesis are still only (possibly) some 10's of thousands of years (very generous of them). As mentioned above, most JW's have no idea what the current teaching is and frankly don't care.
Same stance regarding regarding things like pyramids of Giza. General hand waving but avoiding the topic (as in: some say the pyramids of Giza were built xxxx years ago). So sad, so dishonest. This is what frustrated me the most: why can't we dsicuss the available evidence?