Is Sherlock Season 4 the last?

Related questions

1. Is there really a 221b Baker Street?
2. How does Sherlock faked his death?
3. Is Sherlock a virgin?
4. Is Sherlock Cancelled?
5. Is Irene Adler a villain?
6. How many short stories featuring Sherlock Holmes are there?
7. Will there ever be a Sherlock Holmes 3?
8. Is Sherlock a sociopath?
9. How did Sherlock faked his death?
10. Does Sherlock Holmes die in a game of shadows?

Tags

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2. #worries
3. #final
4. #saying
5. #could
6. #cumberbatch
7. #episodes
8. #however
9. #started
10. #benedict
11. #serve
12. #quoted
13. #masterpiece
14. #couple
15. #might
16. #debuts
17. #season
18. #months
19. #which
20. #planned