I honestly think the 11 is more likely to be dropped than the XR. With the very minimal difference between them, it makes more sense to keep the cheaper model as the entry level, similar to the Apple Watch 3. Mark my words
With how old the XR is I’m surprised it wasn’t dropped last year when the 12 came out, especially with the SE2020 out and with how low the 11 was dropped.
XR and 12 series will most likely get dropped. Although the XR and 11 are similar, 11 is still the better phone spec wise and will be supported longer..