The Ring keypad directly joined to HE is not going to happen. It cannot be discovered by HE. They’re doing something to make it incompatible I think. Doesn’t join to SmartThings either.
However, the Ring Alarm system is really inexpensive right now.
There’s a Community integration that I and several others are using and it works great. Let’s you use the Ring contact sensors for other functionality in HE too. May also work with the Ring motion sensor when the system is disarmed, but I’m not sure. I have not setup my Ring contact sensor yet.