The new release has a lot of improvements. Having said that, you better check out the new system requirements for it. It is eating my laptop alive!! There are many settings to improve the performance, but doing so degrades the look of your model.
In the Ultimate suite you will get a new module called Roads & Highways. This module will allow you to create about 40% of your design in Infraworks, including alignments and profiles, before you even open Civil 3D.
I hope to see some new videos out there from my subscribers.