Lip Smacker said in a comment on their facebook page that they are bringing back 
Caramel Apple as a limited-edition flavor this fall! Hopefully this is more true to the original than the Halloween version.
Reader Megan also noticed a comment from LS mentioning that they are trying to bring Cinnamon Sugar back as a permanent flavor next year, woohoo! Now if we still get that vintage Dr Pepper… 😀