Here's a better look at the expression action figure "Shrug Sonic" (as the other one was on mutant gear for being a flawed figure with no eyes) This pose and expression is supposed to go with the newer stock art that the popular Figpin also uses. It's basically supposed to be him going 'oh well' to something, likely being cocky toward Eggman or a foe / shining them on. And...it translates pretty ok-ly to a figure? If he's tilted correctly so you can see the mouth and the hands are kept in the right position it does seem to do what the art was going for. (Things like this may seem simple, but they're pretty difficult sometimes to translate an attitude or certain expression/gesture into a figure) Not sure what's going on with the pose they have him in on the box back, though.
But, look who else is on the 'line': they're going to have a small line Silver. Super Sonic appears again, as does Shadow and Knuckles, which is good because their distibution still kind of isn't.
Having a unique expression for a figure is a good idea on the small line like this. The figures are inexpensive at 5 dollars each so you'd easily say "yeah I could get another expression for him" at that rate.