The upcoming outdoor camera will be wireless and there’s no reason you couldn’t use it indoors. It’s not much bigger than a V2.
There are existing alarm and siren topics already on the #wishlist.
For future reference, please search the #wishlist and #roadmap categories before submitting a new #wishlist topic. Use these links to search each category:
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.