At the start of 2014 we should see the new dual-core "Merrifield" Atom smartphone procesors, they will first be available in dual-core but a quad-core version will follow in the second half of 2014.
The current Bay Trail based Atom SoC will be succeeded by the 14nm Cherry Trail chip in late 2014, this new SoC will feature Intel's new Airmont processor core and next-generation graphics.
In late 2014 we can also expect the first "Sofia", a new Atom SoC for entry-level devices:
There will be two variants, one released in 2014 which will feature an integrated HSPA+ communications chip, while the second model, to be released in 2015, will feature LTE capabilities. Funnily enough, at first, these communications chips will be ARM-based, but will eventually be converted to x86 architecture.
Source: TweakTown