The main thing for me on the next gen phones is 5G, whether I upgrade my phone this year or next I don't know yet, and it doesn't matter unless I get a decent 5G contract. I am actually quite happy with 4G atm because i have unlimited data and currently at home, so can switch to wifi when needed. And it'll take time for the 5G network really to become widespread and we still don't know whether this whole Huawei equipment will still be an issue. And 5G will be the next thing for at least 7/8 years before 6G is released, if 4G life cycle is anything to go by. I still get 3G signal in and around where I live.
Still tempted to get the pixel 4A as a secondary device to my iphone X as just want a different experience to iOS, then could get the base iphone 12 as replacement for X this autumn. I love the new ipad OS, but iOS on iphone hasn't really changed and is reallly safe and dull. But still it syncs well with my other apple devices, so loathe to get rid of the iphone.