RZ450e will be Lexus' first BEV on dedicated platform. But it won't be an "affordable" car (well, no Lexus is really affordable, as in cheap) but the UX300e is still the entry level to BEV. Lexus will have to make it more competitive. The same goes for Toyota, bZ4X cannot be their cheapest BEV. According to the BEV plan reveal, the CH-R will be that car, and we know UX is related to it, so they'd go by pairs. The same applies to ES/Camry/Avalon.
Now we know CH-R/UX and Camry/Avalon/ES are both the first cars to be based on TNGA platform. They did get their mid-life facelift, though very mild. These cars, being built on the TNGA platform, would not get a new one, but just an evolution. Can we assume they'll get a redesign soon?