https://www.cnet.com/news/august-is-working-on-a-new-view-doorbell-cam-and-chime-says-report/

The original Doorbell Cam came out in 2016, while the Pro model came out in 2017. Although it's been a year since August released new hardware, it recently added updates to the Doorbell Cams like voice unlocking with Google Assistant and doorbell announcements with Google and Alexa.

Now, according to this report, August is working on a new model.