No AMD roadmaps talk about any FX products beyond Vishera. Hence the only thing we've got is Kaveri (2 modules / 4 cores).
No more FX, no more than 2 modules / 4 cores, no matter if it is 2014 or 2015. The new "thing" for AMD is low-power, so they push Kabini/Temash/Kyoto and Kaveri/Berlin, and some ARM based micro-servers instead of focusing on such markets (HEDT, DP/MP servers) where they couldn't catch Intel for years already. It makes no sense to put together a bunch (4 or more) of Steamroller or Excavator modules, just to end up with a huge die with 130W TDP that cannot even beat a Core i7 "Haswell", let alone a Core i7 "Ivy Bridge-E". Why to produce a die that's expensive to make and you cannot sell with a profit?
With HSA AMD tries to convince everyone (especially 3D game developers) that CPU doesn't matter anymore, but it's all about the GPU. And if they succeed with their HSA push, then they may eventually be right: it may be more than enough to have a 2-module Kaveri with a great GCN2 based iGPU to run such games that are designed around the HSA concept. They don't talk about such apps though that would require much more raw CPU power than Kaveri, like video encoding, CAD/CAM, but that only means they let Intel rule that market.