According to g4tv.com, Telltale Games confirmed at PAX Prime 2012 that they will release the next episode of The Walking Dead, called Around Every Corner, in October. The fourth of five episodes arrives the same month that Season 3 of the AMC television show is set to make it´s Season Premier on October 14. Also confirmed at PAX Prime was a December launch for the disc version of the full series. This probably means we will get Episode 5 in November or December.
So, if for some reason you have not played any of the first three episodes you will not have to wait very long to play all five episodes together. Personally, I love these games and I wish it were 10 episodes long.
Here is the entire PAX Prime 2012 Walking Dead Video Game Panel if you want to find out more information: