Being Human Series 3 finale. where will it go from here? poss. spoilers

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so series three of being Human ended on a dramatic event that completely changes everything. I've been watching Being Human since the Pilot, many years ago now. I didn't think that series two was as good as the first series, but series three was brilliant. the way it ended was quite sad, in my view, but I felt that it was where the story had to go. I did find there was a certain inevitability to the event in question and by the end of it, the only uncertainty was who it would be that did it. and the way it was handled was very touching. but it completely changes the dynamic of the house, and does make you wonder, what next. I think the penultimate episode was more exciting to watch than the finale, "Not in WALES!" with the final details about the box tunnel massacre falling into place, and the cliffhangers of whether Nina and the baby would survive and what would happen when the photograph of Mitchell is viewed. so it was unfortunate that the pace wasn't kept up for the finale. having said that, it had some great scenes, and has left everything changed for a future series. how does everyone else feel about this?