The brand name Ryzen, should appear processors with the architecture Zen + . The symbol + in the designation of the new architecture hints that it will not be radically different from the basic Zen.
In fact, at CES 2017 in an interview with PCWorld colleagues site AMD CTO Mark Peymermaster admitted that Zen architecture will evolve over the next four years. The company spent four years on its development, and the same is true of its life cycle. Sequential improvement plan to implement each year. Peypermaster even compared this model of evolution rule "tick-tock" Intel.
Vice President Jim Anderson said that AMD will start selling Ryzen processors on the day of announcement.