we knew this almost 3 years ago just before the FM2+ socket was about to be released
At that time back in late 2013 AMD said that FM2+ would be the last "split" socket from AM3+, and that the next socket would unify the structure on AM4, supporting DDR4 ram (which is how the AM sockets always have been numbered, based on the version of the ddr ram they supported)
I guess it's nice to see their plans haven't change, but i can't help but feel like this is all too little too late at this point. The time for Zen to be launched and be relevant was probably early last year during the underwhelming broadwell release. by the time Zen comes out intel will be on the chip beyond skylake (either the refresh kaby lake or the upgrade on 10nm cannon lake), and if the promo material about Zen is to be believed it will be sitting on roughly Ivy Bridge performance (possibly Haswell level performance, though I've seen nothing to suggest it will be that good)
the Story of post 2005 AMD. too late to the game every time. Once the core2 lineup was released it took them 3 years to find a chip that could play with it (PhenomII), we're now on year 7 of the core I lineup, and they still haven't released a product that matches sandybridge. it breaks my heart since i want AMD to be competitive but i fear AMD's management has crippled the company to the point of non-competitiveness.
I think it's always funny when people put all the blame on AMD management. Sure AMD has messed up, especially in the last 7 years but you have to remember, this is after they were blocked from the market by Intel.
AMD literally could not sell a superior product in the original Athlon because Intel locked them out from all the OEMs. Back in the day where few had Internet, it was a killing blow. If you cannot sell your product, you don't make money.
Ever since then AMD has had less money and as a result, has almost always been a step behind. Once again, Nvidia is doing something similar on the GPU side of things right now. GameWorks, a program Nvidia claims helps devs. make video games for the PC, has not had a single game where it has achieved that goal. AMD may not have clearcut winner cards out right now but the 20% performance hit from GameWorks really doesn't help and pretty much makes it so that no matter what card AMD releases, the Nvidia card will be faster just because it's a GameWorks title. If two company's products are no longer competing on how good each one actually is, this is no longer a healthy capitalist system.