I can't find the quote yet, but the WTS has said that the earthly resurrection will start with the first people who died working back in time so there will be people who speak their language and are from their time, family, etc.
I remember this as well, but I believe it was heavily qualified with things like "likely" "evidently" "we might expect" type stuff. I think it was primarily based on the "god not of disorder but of peace" scripture. It was basically idle speculation.