I seem to recall there being word of a second update that never came. Similar to... well... NGS?
That mausoleum that required a lantern but didn't get completed? Hints of a magical hammer in the kingdom of the gnomes? The Golden Gate being quite prominent but of no use? Dozens of chests, out of bounds areas, lore indications, and more...?
Of all this, the ones that bug me the most are obvious doors that lead to nowhere, locked doors that have no key, and signs that indicate that content is coming in a specific building or area in the near future that sit for months or years with no changes.
These 'tactics' (I use the term loosely) do not create mystique or hint at a larger world, they just excite players only to disappoint them when they realize that 90% of this stuff is fluff that has no substance.
I'm still waiting to open that damn chest that's sitting on the cliff next to the zorbi cave. We're talking like 7-8 years now? Found it my first day on the server, but can't open it.