that ssj3 goku 2.0 is glorious, i really hope that's a smirk face there. At first glance i thought it was a neutral face lol As far as the purple is concerned, if it ends up being a pure blue, i dont mind either way given how great the figure looks and his first appearance he didnt have the purple tinge, not till BoG did he have the tinge in ssj3, before that in his ssj3 form his clothes were always yellow and the blue turned into a more pure blue. I feel like he might have a slight tinge of purple though, the SWA goku also has a slight tinge on the belt and wrist bands, very very slight hint, but it's there.
Also a shame about the knee caps, i wouldve preferred the rounded joints as well, but i guess we cant fault them for trying to listen and give us the knee caps, perhaps it's better than OG knees? Although the advantage of the OG knees was that standing straight up and down it hides it perfectly, with the knee caps, theyre kind of always there, so pros and cons. The hair does look glossy to me too, but for imo for ssj3 it's fine, although i agree would be nice to match the rest of the current releases, but we'll see, sometimes the final product may have last minute changes like SSB goku (glossy hair promo pics, then shaded matte final product)