Well, the fourth episode entitled A Block and a Hard Place has now been detailed and it is coming very soon. It will be with us on December 22nd on PC and will come to the other platforms soon after.
I was almost hoping that the series would be wrapped up by the end of this year, but that is probably not going to be the case now, sadly. Still, I hope Telltale take from this and implement speedy episode releases in lots more of their future series. It works well.