It could be something where you don't get the new intro till after a certain point (IE beating 2.55, thus starting Heavensward.)

Also this (https://www.youtube.com/watch?v=4phUCJlomPo) is more likely to be the intro I believe. Still spoilery but NOT for 3.0 stuff. That said unless a dev/mod posts something we won't know for another month.