Wasn't sure where to post this since it covers multiple waves, so hopefully this will do..
After being told about it by a buddy, I tonight saw a "greatest hits" revision case of past figures. It included Jedi Luke, Vader, Kylo, Finn, Rey, FO Stormie, Ep7 Han, Ep7 Leia, and Phasma. I forgot to take note on which were doubled but best guess would be Vader, Rey, and Kylo.
So if you're suddenly seeing some older figures not named Finn or Poe show up, this is likely the culprit