Xenoblade Chronicles: Switch vs. Wii Comparison
The faces have been fixed. There isn't a massive, Earth shattering amount of difference between the Wii version of Xenoblade and the Switch definitive version besides the resolution. But the improvements to faces in the latest Xenoblade game is a massive improvement over the original Wii version.
Besides the faces, the resolution is much better in the definitive version of Xenoblade, giving everything a much clearer appearance.