If you are asking if ST6 has the ability to manipulate the shape of spline-based faces directly (without sketches), then no, this is not in ST6.
I believe we've been pretty clear on this all along -- at least in the forums that I've communicated our plans here, such as Solid Edge University, Solid Edge Summits, etc. and the plan is as follows:
1. Providing the full breadth of surfacing functionality, including "C2 everywhere" and being functionally "best in class" was the top priority. I believe this was achieved with ST6 -- in the ordered environment.
2. Synchronous surfacing comes after that, and is subject to prioritization amongst other important projects.
Given that "ordered surfacing" now is "functionally complete" with ST6, we plan to let this bake a little with our customers in production and make sure we have the right vector here. We will revisit synchronous surfacing in the future. (after ST7).