Starting with the production process, AMD will introduce its first 28nm parts in the form of Krishna and Wichita Fusion APUs sometime in 2012. The new APUs will be based on enhanced Bobcat cores, which are now being stamped out at 40nm, but the thanks to the 28nm process AMD will be able to introduce the fist Bobcat based quad-cores next year. Krishna APUs will be used in the Deccan platform, which is set to replace Brazos in 2012
In the performance and mainstream markets, AMD will rely on Trinity, a new 32nm design based on the upcoming Bulldozer core. There are few details at the moment, but the use of the all-new core makes Trinity one of the more exciting AMD products in 2012. Trinity APUs will end up in the Virgo platform, which will phase out the current Lynx platform.
As for the enthusiast market segment, AMD will offer the Corona platform, based on Komodo series CPUs and next generation discrete graphics. Both Komodo and Trinity will use apparently use new FMx-series sockets, which comes as no surprise.
You can check out the details here.