In AMD’s recent earnings calls for the fiscal year of 2015, the company confirmed that their Zen-based Summit Ridge FX CPUs will be launching in late 2016. AMD’s Zen core has been under development for the last two years. Zen will introduce two brand new processor families codenamed Summit Ridge and Bistol Ridge which will address the high-performance and mainstream consumer markets.
Only in 2014 would AMD make the switch to a 28nm process with “Steamroller”, but this new design would be only limited to the Kaveri and Berlin APUs. It is possible that in 2014 and going forward AMD would possibly not offer any more CPUs under the FX Processors brand.