The Old: Strong, Moderate, At Risk and Disabled The New: Active, Disabled and In Trial
Sometime in November Google is revamping the classification of keyword status... Strong, Moderate, At Risk and Disabled will be gone. Replacing them will be Active and Disabled, as well as "In Trial".
In Trail has been delivered to meet the problem of quick disabling of terms. Google will use its predictive modelling to know what words are not going to do well and give them more time to run. Instead of the 1,000 impressions and you're out... this new system may allow terms as much as 10 times more access to eyeballs.
There will be a limit to the number of In Trial terms an account can have at any given time.
The Disabling of a term with under .5% CTR will continue.
As reported at Search Engine Watch Forums.