No, doesn't seem so yet. 2012+ is the same in the S, and the X. Likely will remain the same throughout this generation of that shared platform or not have much more software extended to use something new. I'd expect something new in the Model III, and then next generation S/X.
Actually, I believe the main screen has been updated from Tegra3 to Tegra4, and the dashboard has been upgraded from Tegra2 to Tegra3, concurrent with the resolution update of the dashboard display. However, I've not seen any hard evidence for this, other than it being mentioned by the "hackers" that demonstrated a few security flaws with the Model S.