They just released a film last week, that's been 13 years in the making, to end the show. The vast majority of the cast returning. I thought the film was fantastic, and it's getting pretty universal acclaim from critics.
So now you have the 3 seasons plus the ~2 hour film to bring things to a close. I highly recommend it.
Finished the first season of The Wire and it sucked. Will stick with it due to the fact everyone loves it.
I watched deadwood without knowing it was cancelled. I remember watching enter thinking Jesus if this is the last season they would really need to speed up the story especially in the last episode I was like eh hello when is things going to start happening. Still one of my favourite shows regardless.