Having spent a great deal of times researching SDR's today, I came across this.
This is in replacement of the SDR, and is comprised of all the G20 currencies.
http://www.prnewswire.co.uk/cgi/news/release?id=265544
New World Currency Introduction
LONDON, September 11 /PRNewswire/ -- This week the world's financial markets will see the first ever execution and settlement of a trade conducted in Wocus (World Currency Unit), the newly-introduced world currency. The Wocu has been developed as a d