Upcoming "features" from the September 15 update
Tuesday 15th of September 2015
This patch had 8,245 lines of new text featuring: 40% skills and skill related messages, 50% old weapon skins and their recipes and 100% disappointment. I didn't see any noticeable maps, textures sound files or models either so I think this one mainly contained specialization related stuff. If I encounter anything worth mentioning I'll add it to the list later..

Items

ItemDescription
Mini
1058994_0761New Mini Bonebreaker Available!
[&AgGcEgEAAA==]Mini Bonebreaker
Mentor
1058995_0923Gain a map marker and [Mentor] chat tag to use as tools for guiding new heroes through Tyria.
1058995_0013Mentor ___
Gliders
1076072_0880You have already unlocked this glider!
Mushrooms
1058995_0481Find and kill the treasure mushroom.

Images