In the state of the universe address 2012 from MA they said Will there be more Ten or any other events held on Ark?
If it goes like what we had in last 2 years, then we should be at least have an annual Gold rush and a hunting event before the end of 2013 I think.
Not sure if its tied to a specific event going on but I saw several ten items looted when I was checking out the new mining missions yesterday or day before depending what side of the globe you live on.