After reading some reports online, I went back today and bought one of leftover shipper Cassians from Target and brought it home to compare to the one from Wave One. Sure enough, they do appear to have updated the paint apps on his face. The new one looks a lot better, the goatee is browner (less black) and thinner, and they eyebrows have toned down too. It's not a huge difference, but a noticeable one. For $10, I guess I will keep the new one too.
I had read they did the same thing for Jyn but I haven't been able to confirm yet.