The Walking Dead is to include the whole bundle of episodes, having been confirmed by Telltale Games. It is set to be launched on December 4th in the US, but no date for the EU release has been set as of yet, listing as “TBA”.
Every of the five episodes are loaded onto the disc, so there will be minimal waiting time for players to make their way through them all. This has also been done in the past - again by Telltale Games, with Back to the Future at a good price of $20.
Details of pricing for Back to the Future, amongst other information, are expected to be unraveled in the near future.