The release date for Episode 2 hasn't been announced yet. At a rough guess though (and that's ALL it is, mind), I'd say not until the end of November.
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I don't think we'll get any info or a release date anytime soon. Telltale will let us know a few days prior to the release, just like they did with The Walking Dead, and just like they did with Episode 1.
Anyway, I'm hoping it actually does come out every month, unlike The Walking Dead, which had a two month gap in the release dates. Twice.