The #wishlist and #roadmap are your friend. Doorbell and siren are both listed there. You can learn the status by reading those topics. You can use these links to search:
Search Wishlist (enter your search word/s after #wishlist in the search box)
Search Roadmap (enter your search word/s after #roadmap in the search box)
Please read through How to Use the Wishlist and How to Read the Roadmap.
Also check out the #news category. There is a recent post there from Wyze about the product announcement during the Wyzies.