Look for 1.17 to be the easter event and the V2 mob data icons plus some user interface tweaks. Don't expect much more. It's going to be pretty disappointing if you get your hopes up.

Look for 1.17a to be a technically-we-were-telling-the-truth-when-we-said-it-was-in-preparation-for-PVE-content kind of thing with next to no impact. Like...sleep potency has been adjusted. SP gains for 8 man parties have been adjusted. The way X behaves in an instance has been adjusted.

20 years of dealing with SE. You've been warned!