More execution units and clocking, with the high end being GT3e (Including Intel Iris Pro graphics 5200 with on-package 128KB RAM).
There will be models beyond the 5200 but not likely any significant architectural enhancements until Skylake, about 3 years down the pike.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.