For a long time, an announcement of a casting on The Walking Dead TV show would cause books that would otherwise be cover price to jump up to $20+ books. Thats the way it used to be, however, as of late, there is little to no movement on Walking Dead comics.
Lydia, the daughter of Alpha, of the Whisperers has been cast according to Hollywood Reporter. She will be played by Cassady McClincy.
Like I said, previously this kind of announcement would make comics like This could be due to the TV show catching up to the more recent books Walking Dead #133, the first appearance of Lydia, jump in price. Recently sold copies have closed for about $3.50. Not much heat any more. Could be because Andrew Lincoln leaving the show. Could be because of dwindling ratings. Could be because the newer appearances are coming from later issues which had higher print runs.
One thing I am sure of is that with Carl dead at the end of last season, we will not be getting the eye socket lick from the comics.