Seems like this wave is making a comeback. I've been to 3 Walmarts over the last week for various reasons and I've seen maybe 20 Landos, 20 Ackbars, 2 Ahsokas, and 0 ERGs. They have to be new because I never saw this wave locally, and haven't seen it period since I grabbed my set in a small town WM shortly after Force Friday 2016.
Gives me hope that we'll see more of the Rogue One figures and the Proto Fett wave eventually.