We heard from different sources around AMDs Board- and OEM-partners that the new Piledriver core will increase the IPC by about 10 to 20 percent, depends on the application you use. Trinity additional will increase graphics performance by about 30 percent compared to the current Llano generation. The A10-prefix was confirmed as well.
Also interesting is that the Trinity APU production currently running probably well and products will be widely available after launch. AMD currently just try to sell stock quantities of Llano before they'll launch the new generation. But take this one with a grain of salt, because it's currently just confirmed by only one AMD partner.