AMD has seemingly confirmed that there will be more than just the fabled 8-core, 16-thread Ryzen CPUs we've only as of yet seen presented by the company. Come the expected Ryzen launch before the end of Q1 (which means, before the end of March), we should see more Ryzen CPUs than only 8-core solutions, though AMD still hasn't revealed exactly the core-count/configurations of the other CPUs on their product stack. Theoretically, AMD could follow the Intel path of simply disabling SMT (Simultaneous Multi-Threading, AMD's equivalent to Intel's Hyper Threading) and thus crafting another product, though this is pure speculation on my part. Whether or not AMD will include 4-core or 6-core CPUs on their product stack as well is as of now an unconfirmed, educated guess.