More members have been told
the last day for signing up for the longstanding Gold / Platinum challenge will be September 23, 2025.
After that, no more challenge for the remainder of 2015. A new challenge, requirements unknown, is rumoured for 2016.
The original challenge thread has been retitled, and can be read here:
http://www.flyertalk.com/forum/ameri...ep-2015-a.html