RetroFit Kit and Existing ADT Hybrid Wireless and Wired

I have read up on the RetroFit kit and know what it does/how it works. I did have one clarifying question though that I think is a matter of semantics. I recently bought a home that has a fully installed ADT system. This system is NOT ADT Pulse, which I think is an important distinction. However, the ADT system is a combo of hardwired *and* wireless sensors that all feed back into a box in our pantry. The alarm panel in the box has both the wires coming in, but also has 2 antennae for the wireless sensors coming into the same box. Will the retrofit work with this existing system (assuming I have the rest of the Ring equipment necessary). Thanks!