If this is the last Series how will it end?

[femaleBertieWooster]

I can't imagine it would be something final that cannot be undone, like Harry's death. They would want to see how the series is faring with ratings, etc before they pulled the plug.

Since whatever it is, is already in the can, I doubt my ending of choice, which would allow for a hiatus, rethink and re-financing, is it.

I would like it to end something like Seinfeld, where they all went to prison together. The Spooks version would be, all field officers captured and the grid in disarray, with only Harry and Tariq standing there in shock, (or something like that.)