Honestly, I hope they don't do another season. This was the perfect place to end it and honestly, I wasn't all that impressed with this last season. It was like any other show that gets a short season to wrap things up. Lots of resolutions, not much story.
Yeah imo this was THE perfect ending.
As much as I enjoyed the Show they need to move on before the REALLY effed it up...
The only thing that bothered me about 4 was that they didn't embrace the move to netflix at all. They finally uttered a bleepable word around episode 9 or so of 10. Same physical structure for commercial breaks, etc.